Ajar contains five red marbles and three green marbles. a marble is drawn at random and not
replaced. a second marble is then drawn from the jar.
find the probability that the first marble is red and the second marble is green.

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?