Why do union members generally earn higher wages than non-union workers?

They are able to use collective bargaining.

Their work is generally more dangerous.

They have a higher level of skills.

They have had longer on-the-job training,

What material made the structure ofbridges stronger and more long-lastingduring the early 1900's?A. concreteB. stoneC. steelD. wood give three reasons why it s important to ensure your portfollo is professional If the figure is reflected over the x-axis, what are the coordinates of point R? In the formula, l = a + (n - 1)d make d as the subject. Find d when l = 10, a = 2, n = 5. How did Americans feel about nullification? Find the distance between the points given.(3, 4) and (4,7)0 212O 1003 Describe the Jabberwock using specific nouns and adjectives from the poem. Find the circumference of a circle with a radius of 5 mm.A 307 mmB 57 mm257 mm107 mm 6313Choose the equation that best describes the image. Please help me quick help me please u have to describe what a problem is What is the slope of a line perpendicular to the line whose equation is x+ 3y = -15 Fully simplify your answer. If you know this youre very smart! In London, during the early to mid - 18005 , how many children of the poor died before the age of one? Help pleaseeeeeeeeeeeeeeeeeeeeeeeee A dove is a small pigeon. The most common dove in North America is the mourning dove. The mourning dove gets its name from the songs it sings. Many people think that the song sounds sad. It is unusual to see a mourning dove without a partner. Mourning doves mate for life. They are devoted partners. They build their nest together. The male collects twigs and leaves for the female. He stands on her back while she puts the nest together. He gives her the materials. The female lays eggs. Then males and females take turns caring for the eggs. The male warms the eggs from morning to afternoon. The female does this from afternoon to night.Do It!Mourning doves work _________.A noisilyB togetherC oftenD quickly The first 5 figures in a pattern are shown. If the patterncontinues, which expression can be used to find the number of circles to make up Figure n?f.n^2+ 2nh. 2n^2+ 1g. n^2+ 2j. 2n^2+n Help please question in photo What is the relationship between the side lengths of the white square and the side lengths of the triangles?es -)A)Each side of the white square is congruent to shorter leg of a triangle.B)Each side of the white square is congruent to the longer leg of a triangle.Each side of the white square is the hypotenuse of a triangle.D)Each side of the white square is congruent to both legs of the triangles. What is the primary objective of U.S. foreign policy?to act as the worlds policemanto help Americans acquire more wealth than any other peopleto pursue the national interests of the United States and the American peopleto make the United States the most popular nation in the world