John and 4 friends are going out for pizza for lunch. they split one pizza and 5 large drinks. the pizza cost $10.00. after using a $4.00 gift certificate, they spend a total of $13.50. write an equation to model this situation, and find the cost of one large drink.

Translate the following words into an expression: “the quotient of a number and three is five.”

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=