The length of chen's office is 15.5 feet and the width is 7.8 feet. Use the formula P=2L+2w to find the perimeter of the office.

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?