Throught the year janet took 4 math test; her average score was 90. if she scored a 95,90 and 85 on the first three tests, what did she have to score on the final test to attain her average

Which graph shows a function with a range of all real numbers greater than or equal to -1

Simplify the expression and find the missing terms. the simplest form of has in the numerator and in the denominator.

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 =