The following steps are used to rewrite the polynomial expression (x + 4y + 2)(x - 7y).
step 1: x(x – 7y) + 4y(x - 7y) + z(x - 7y)
step 2: x2 - 7xy + 4yx - 28y2 + zx - 7zy
step 3: x2 - 7xy + 4xy - 28y2 + xz – 7yz
step 4: x2 – 3xy - 28y2 + xz - 7yz
identify the property used in each of the steps:
step 1:

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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Adeli owner keeps track of the to-go orders each day. the results from last saturday are shown in the given two-way frequency table. saturday's to-go deli orders in person by phone online total pick up 38 25 31 94 delivery 35 28 34 97 total 73 53 65 191 what percent of the to-go orders were delivery orders placed by phone? a. 14.66% b. 38.41% c. 28.87% d. 52.83%