PLEASE HELP MEI AM LITERALLY PANICKING During a quiz, Hannah scored 72 points. Her friend, Mary, scored 1/4 of what Hannah got. What is Mary's points?

68
16
76
18

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

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?

I’m really confused and need to learn this