Dominic drove 324 miles from salt lake city , utah , to bryce canyon national park in 6 hours and 45 minutes . what was his average speed in miles per hour ?

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?

What is the solution to the equation in the & show work i’m very

Which expression is equivalent to -5(3x - 6/7)