PLEASE HELP ME ITS DUE IN NOW Dan's car depreciates at a rate of 13% per year.
By what percentage has Dan's car depreciated after 4 years?
Give your answer to the nearest percent.

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 an equation for the linear function which has slope -10 and x-intercept -7

Can some one me with these questions