There are 7 students in a class: 5 boys and 2 girls.
if the teacher picks a group of 4 at random, what is the probability that everyone in the group is a boy?

Jamie is hiking up a small mountain. he climbs up at a constant rate of 300 feet/hour until he reaches the peak at 1,500 feet. after that, he hikes down at the same rate to the base of the mountain. the equation that models jamie’s elevation, e, after t hours is e = . jamie’s elevation will be 600 feet after hours and after hours.

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

Which number produces a rationale number when multiplied by 1/5