Find the value of k if it is known that the graph of y=kx+2 goes through point: c(3, −7) pls me hurry gtg in 5 mins

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books