If two lines are perpendicular, then they form four angles that are each 90 degrees.
true or false?

Can someone check my answer? you : )

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?

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250