8 pairs of jeans and 10 shirts cost $80. The cost for 9 pairs of jeans and 5 shirts is $65. Find the cost of each pair of jeans and shirts.

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

The base of the rectangle pyramid is 13 inches long and 12 inches wide the height of the pyramid is 18 inches . what is the volume of the pyramid ?

Yolanda wanted to buy a total of 6 pounds of mixed nuts and dried fruit for a party she paid 21.60 for mixed nuts and 11.90 for dried fruit did yolanda but enough mixed nuts and dried fruit for the party