Acopy machine repairman makes $12.50 per hour plus $4 for every service call he performs. last week he worked 34 hours and made 6 service calls. how much money did he make?

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Write as a product: ac^2–ad+c^3–cd–bc^2+bd

Abarge can safely haul no more than 400 tons across the river. the barge has an empty weight of 24 tons. the average weight of the railroad cars is 4 tons each.bhow many railroad cars can the barge haul?