There are 60student in a class there fourths of the. are girls how many boys are there

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?

Find the power set of each of these sets, where a and b are distinct elements. a) {a} b) {a, b} c) {1, 2, 3, 4} show steps