Sandy is working with a carpenter to frame a house. they are using 8-foot-long boards, but each board must be cut to be 7 feet, 10 3/4 inches long. how much is cut off each board?
3/4 inch
1 1/4 inches
1 3/4 inches
7 inches

Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?