One gym charges a $50 sign up fee and $65 per month. another gun charges a $90 sign up fee and $45 per month. foe what number of months is the cost of the gyms equal?

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?