A doctor ordered a 5% saline solution to be prepared How many grams of pure drug will be needed to make a 65 mL of solution at 5% strength?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

The tile along the edge of a triangular community pool needs to be replaced? ?

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?