How many terms are there in the series. 201.208.215319​

If the measure of xyz is 81 what is the measure of yz

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

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 =