What is the area of the triangle? (pls thx)

(9x-5) - (x+12) what’s the answer and also explain how to do it i need it for a test tomorrow

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?