What is the number that comes in 7 and 15 times tables

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?