A computer store buys a computer system at a cost of $720,80. The selling price was set at $901, but after a year the computer did not sell. The store then advertises a 20% markdown on the $901 computer system. Find the sale price.
The sale price is $ (Round to the nearest cent as needed)

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base