The science club has five female and five male students. The club will randomly select two people to compete in the upcoming science competition. What is the probability that both people chosen are females?

StartFraction 1 Over 90 EndFraction
One-fifth
Two-ninths
One-fourth

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.