Henry cut a 58 inch plank of wood into two pieces. The longer piece is 20 inches longer than the shorter piece. What are the lengths of both pieces?

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Find percent notation for 0.008 0.008=

Write 17/20 as a decimal and as a percent.