A store sold 850 cell phones last week. this week, the store sold 612 cell phones. whats is the percent decrease in the number of cell phones sold from last week to this week?

28% decrease

Step-by-step explanation:

Percentage Decrease=

(Starting Value − Final Value) / Starting Value x 100

(850 - 612) / 850 x 100 = .28

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.