4/5 of a number is 64

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

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 =

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28