What is 13 1/4 - 4 2/5=? I’m taking test and I have a hour to finish ty if you answer.

Every rhombus is a square. true false

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

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