Zack gets paid $8 an hour to babysit. The amount of money he earns depends on the number of hours he babysits. Which is the dependent variable, and which is the independent variable

41/17 as a decimal rounded to the nearest hundredth

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

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?