To download movies off the internet, you must pay 1.99 per movie, plus one time fee of 5.50 write an expression to show the total cost to download x movies

Can someone me with this problem . show your work .

Askateboard ramp is in the shape of a right triangle what is the height of the ramp

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?