An electrician charges $100 per visit plus $75/h for house calls. Write an algebraic expression that describes the service charges for one household visit. Use your expressions to find the total service charge for a 2.5 –h repair job.

Solve the system of equations. y= 2x y= x^2 - 15

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?