1. Write the fraction or mixed number as a percent (show all your work)
a. 23/40 =
b. 4 % =

Y=4x^2+x-1 solve using quadratic formula

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

Which of the following graphs could represent a quartic function?