Mr. Lee wants to cover the seating area with tiles. If each tile has an area of 4 ft2, he will need tiles to cover the seating area.

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

Item 1 solve for s. s+24=90 −114 −66 66 114

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.