Which of the following is a valid application of the distributive property? A. 3 • (4-5) = (3•4) - (3•5)
B. 3+(4-5) = (3+4) - (3+5)

Answer choices:
A. Both A & B | B. Neither A or B | C. A only | D. B only

30 determine the coefficient on x 12 y 24 x12y24 in ( x 3 + 2 x y 2 + y + 3 ) 18 . (x3+2xy2+y+3)18. (be careful, as x x and y y now appear in multiple terms! )

Taking algebra two apex courses and need with these questions

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field