What its the exact and estimate of -3.7 +(-6.8) and i need work

Simplify. show your work. ( 6x-2 ) ^2 ( 0.5x )^4

Find the balance at the end of 4 years if 1000 is deposited at the rate of

Ajar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. find the probability of drawing a white or red marble on the first draw. 125 12 01 next question ask for turn it in