Mrs. bull spilled coffee on her computer during the first week of school! the total cost after tax to repair is represented by 0.09(75h)+75h, where h represents the number of hours it takes to repair her computer. what part of the expression represents the amount of tax mrs. bull has to pay? explain

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

Using two or more complete sentences, describe how you can find a vector parallel to b=-2,3

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?