What is the simple interest rate on an account that earned $56.25 in interest after two and one-half years on a principal balance of $300 Plz show work

Given abcd ac=38 and ae=3x+4 find the value of x

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?

Apasta salad was chilled in the refrigerator at 35° f overnight for 9 hours. the temperature of the pasta dish dropped from 86° f to 38° f. what was the average rate of cooling per hour?