In one physical education class, 5/8 of the students were playing basketball. After 3 more students joined, 18 students were playing basketball. Which equation represents how many students are in the class

If a =6, what is the value of 2a(3b + 5c)?

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.

What is the result of adding the system of equations? 2x+y=4 3x-y=6