What is the product? (9t--4) a) -81t^2-16 b)-81t^2+16 c)-81t^2 - 72t+16 d)-81t^2 +72t+16

Apool measures 100 meters by 100 meters a toddler inside the pool and trows a ball 60 centimeters from one edge of the pool. how far is the ball from the opposite edge of the pool

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?