Aconcrete mixture is made up of 3 parts water, 4 parts cement, 5 parts sand. find the ratio of
a) the amount of cement to the amount of water
b) the amount of sand to the amount of the concrete mixture

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.

Ican't solve. your equation is impossible. you can't have two equal signs.