Write a linear system of equations. Let x be the number of vans, y be the number of small trucks, and z be the number of large trucks. Choose the correct answer below. A. x+y+z=320 B. x+y+z=560 25,000x+50,000y+80,000z=13,000,000 x2y=0 25,000x+50,000y=13,000,000 x2y=320 C. x+y+2z=320 D. 3x+y+z=320 25,000x+50,000y+80,000z=13,000,000 x+3y=0 25,000x+50,000y+80,000z=13,000,000 x2y+z=0 They can buy vans, small trucks, and large trucks. (Simplify your answers.) Choose the correct answer below. 35x+140y+385z=405040x+120y+240w=436040x+110y+300z+210w=518035x+140y+385z+280w=518040x+120y+320z+240w=436040x+210w=4050 B.35x+140y+385z+280w=436040x+120y+110z+240w=5180385x+320y+300z+210w=4050 35x+140y+385z+280w=518040x+120y+320z+240w=436040x+110y+300z+210w=4050 Select all that apply. A. 0 brand A,15 brand B,8 brand C,0 brand D B. 5 brand A,15 brand B,5 brand C,0 brand D C. 2 brand A,5 brand B,2 brand C,10 brand D D. 3 brand A,0 brand B,11 brand C,3 brand D E. 5 brand A,0 brand B,10 brand C,0 brand D F. 2 brand A,5 brand B,10 brand C,2 brand D G. 0 brand A,0 brand B,8 brand C,15 brand D H. 1 brand A,10 brand B,9 brand C,1 brand D