Can someone my math starts at 1st (11 and 12)

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25

Taber invested money in an account where interest is compounded every year. he made no withdrawals or deposits. the function a(t)=525(1+0.05)^t represent the amount of money in the account after t years. how much money did taber origanally invested?

Three consecutive integers have a sum of 234. what are the three integers