Ty's fish tank is 1/3 full of water. if he adds another 4 gallons of water, it will be completely full. how many gallons would ty need to add to make the tank 75% full? ( show steps! )

Agrocery store has 12 lb of trail mix that is 10% banana chips. the store's manager would like to add banana chips to bring the new mix up to 25% banana chips. write and solve a system of equations to find out how many pounds of banana chips manager needs to add.

If m 17 27 90 63 ** picture is attached

Mr. thompson is on a diet. he currently weighs 260 pounds. he loses 4 pounds per month. what part of the story makes the relationship not proportional?