Please help me Susan bought 200 apples at $0.50 each and sold them to make a 15% profit.

(A) calculate the total cost of the apples that Susan bought

(B) calculate the profit that Susan made

(C) determine the selling price of all the apples

(D) how much world she have to sell the apples for in order to make a profit of 20%

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.