Aspherical balloon is inflated with helium at the rate of 100pie ft^3/min/
a) how fast is the balloon's radius increasing at the interest the radius is 5 feet?
b) how fast is the surface area increasing at that instant.

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

The only way to identify an intercept is as an ordered pair. true false

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?