A zip-code is any 5-digit number, where each digit is an integer 0 through 9. For example, 92122 and 00877 are both zip-codes. How many zip-codes have exactly 4 different digits

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase

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?