in a group of 60 students, the probability that at most 30 of them like to swim is 56%. What is the probability that at least 31 of them like to swim?

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y