If a salesman is paid a $140 commission on the sale of a $2,800 sailboat, what is his commission rate?
for a $185,000 home?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?