Solve using elimination. –9x − 9y = –18

8x + 9y = 20

Solve using elimination.

–9x − 9y = –18

8x + 9y = 20

Solve using elimination.

–9x − 9y = –18

8x + 9y = 20

Solve using elimination.

–9x − 9y = –18

8x + 9y = 20

Solve using elimination.

–9x − 9y = –18

8x + 9y = 20

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.

Select the quadratic that has root x = 8 and x = -5

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.