The weight of an object on the moon is 1/6 of its weight on earth. if a moon rock weights 20 1/2 lb on earth, how much did the moon rock weigh on the moon?
give your answer as a simplified mixed number.

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

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 =

Sera sells t-shirts at the beach. she believes the price of a t-shirt and the number of t-shirts sold are related. she has been experimenting with different prices for the t-shirts. she has collected a data set with five pairs of data; each consists of the price of a t-shirt and the number of shirts sold. the independent variable, which will go on the x-axis, is . the dependent variable, which will go on the y-axis, is the