21 is what percent more than 16

West of a city, a certain eastbound route is straight and makes a steep descent toward the city. The highway has a 12% grade, which means that its slope is - 12/100.

The school held a car wash day it ran from 10 am to 4 PM 12 different students worked each hour how many students were needed for the whole day

The probability that it will rain today is 0.3 what is the probability that it will not rain?

Rewrite the polynomial - 9x5 + 36x4 + 189x3 in factored form.

Solve by setting up a system of linear equations with 2 variables and 2 unknowns. There were 130 faculty at a conference. If there were 18 more women than men attending the conference, how many of each gender attended the conference?

Factor completley x2-4x-12

6-x=15 what is x? I am trouble finding it

What is the quotient of 55 divided by 5?

With a starting amount of $975, interest rate of 5.5% after 3 years?

The product of a number and 7 is not less than 21