Please help I have to get my grades up

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

How many 3/8s are in 6 plz someone tell me now

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters