How do i find the test average?

Combined megan and kelly worked 60 hours. kelly worked twice as many hours as megan. how many hours did they each worked?

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab