12. Ryan deposited $3,500 in a savings account with an interest rate of 3% per year. How much simple
interest will he earn in 4 years?

Aswimming pool measures 22ft by 12ft and is 4ft deep. if the pool is being filled at 2.5 cubic ft per minute, how long will it take to fill the pool?

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18