The sum of the percent frequencies for all classes will always equal:

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Asix-sided number cube is rolled twice. what is the probability that the first roll is an even numbe and the second roll is a number greater than 4?