Maria bought 7 boxes. a week later half of all her boxes were destroyed in a fire. she only has 22 boxes left. how many did she start with?

(i need an equation not an answer)

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

What is the measure of angle afe? 79 81 91 99

What is the total surface area of this square pyramid?