please help me solve these

15. [-/1 Points] DETAILS TANAPCALCBR10 6.2.058. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Demand: Women's Boots The rate of change of the unit price p (in dollars) of a certain brand of women's boots is given by 325x p'( x ) = - (16 + x2) 3/2 where x is the quantity demanded daily in units of a hundred. Find the demand function for these boots if the quantity demanded daily is 300 pairs (x = 3) when the unit price is $65/pair. P(x ) = Need Help? Read It 16. [0/1 Points] DETAILS PREVIOUS ANSWERS TANAPCALCBR10 6.2.059. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Population Growth The population of a certain city is projected to grow at the rate given below. r(t) = 1600 1 + 8t 4 + t (0 s t s 5) The rate is measured in people/year, t years from now. The current population is 75,000. What will be the population 3 yr from now? (Round your answer to the nearest whole number.) 79553 x people Need Help? Read It Watch It