How do you solve for l?

l=5b
l+7=3(b+7)

How many days was the temperature above 90 degrees?

What is the measure of angle afe? 79 81 91 99

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =