1. a plumber charges $80 plus $40 per hour of labor. the equation cost = 40 * ( # of hours) + 80. o find the total cost if labor is 2 hours. o if a client’s total charge for labor is $240, how many hours of labor was the client charged for

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?