Hannah's school hosted a book donation. there are 150 students at her school, and they donated a total of books! hannah donated 3 times as many as the average number of books each student donated. how many books did hannah donate? write your answer as an expression.

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?

What is the length and width of a 84.5 square foot rug? will mark

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?