The population of a city has increased by 15% since it was last measured. If the current population is 64,400 what was the previous population

Write an algebraic expression for the word expression the quotient of c and 8

You have 17 cats that live in houses on your street, 24 dogs, 3 fish, and 4 hamsters. what percent of animals on your block are dogs?

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank