2 1/2 into feet pls give me an answer

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

Plz hurry evaluate the expression a+b where a=8 and b=19