(x+4y+z)(x-7y) identify the property used in each of the steps

Multiply the parentheses then collect like terms
(x+4y+z) (x-7y)

x^2-7xy+4xy-28y^2+xz-7yz

x^2-3xy-28y^2+xz-7yz

The answer is d 18ft

A)26•2=52there are 2 sides with the same length116-52=64the other 2 side have to be half of 64 each64/2=32the width is 32b)make two sentences about these steps because your teacher knows how you write and explain things.