Explain how you would round the numbers 33 and 89 estimate their sum

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

3.4a=57.8 what is the the value of a

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?