For the inverse variation equation xy = k, what is the constant of variation, k, when x = â€"2 and y = 5? â€"10 Negative two-fifths Five-halves 10.

What is the simplified form of 7 √x • 7 √x • 7 √x • 7 √x?

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

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)