For Cynthia's fourth lab report, she calculated the ratio of velocities before and after the impact if a basketball bouncing on a court. This measurement is called the coefficient of restitution. She got the following four values. 0.72, 0.75, 0.73, 0.76

The accepted value is 0.77

Cynthia's percent error was blank%

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?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Ateam of runners is needed to run a 1 2 -mile relay race. if each runner must run 1 4 mile, how many runners will be needed?