a spherical balloon is being blown up so that its radius increases at 0.4 cm per sec. Find the rate of increase of the surface area of the balloon when the radius is 20cm​

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

i believe the answer is 323 ft

step-by-step explanation:

a.for lorena 14 hours makes $126   for 16 hours she makes 144

for julie 6 hours makes $72 for 21 hours its $252

b. julie makes more money than lorena julie makes $12 an hour and lorena makes $9  

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