A water tank is 18 full. The tank is 34 full when 42 gallons of water are added to the tank. a. How much water can the tank hold?

The tank can hold gallons of water.

b. How much water was originally in the tank?

The tank originally held gallons of water.

c. How much water is in the tank when it is 1/2 full?

The tank holds gallons of water when it is 1/2 full.

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

What is the value of x when x + 7 = 21?

What is the solution to the equation e3x=12? round your answer to the nearest hundredth