The radius r of a spherical balloon is expanding at the constant rate of 14 in/min. (a) Determine the rate at which the volume V changes with respect to time, in in3 /min, when r = 8 in. Round your answer to the nearest integer. Recall V = 4 3 πr3 .

Solve the system of equations. y= 2x y= x^2 - 15

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

Bobby bought 1.12 pounds of turkey at a cost of 2.50 per pound. carla bought 1.4 pounds of turkey at a cost of 2.20 per pound. who spent more and by much?