Last week Colby baby-sat for 12 hours and earned $156. He earned the same amount of money for each hour he baby-sat. How much money, in dollars, did Colby earn per hour for baby-sitting?

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?