Zak and ryan earn $60 per week for dilevering pizzas. zak worked for x weeks and earned an aditional total bonus of $25. ryan worked for y weeks. which expression shows the total money, in dollars, that zak and ryan earned for delivering pizzas?

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Lin is writing an equation to model the proportional relationship between y, the total cost in dollars of downloading videos from a website, and x, the number of videos downloaded. she knows that the total cost to download 3 videos was $12. her work to find the equation is shown below. joylin’s work step 1 k= 3/12= 0.25 step 2 y= 0.25x where did joylin make her first error?

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.