a long distance call between two cities costs $5.28 for 16 minutes. what is the rate in cents per minute

Rearrange the formula c^2 = a^2 + b^2 for b

The system of equations graphed below has how many solutions? y = 2x + 2

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?