A is 100% more than b. Which of these shows the ratio a:b?
2:1
100:1 1:100
1:2
A
B
C
D

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

Which two undefined geometric terms always describe figures with no beginning or end?