Had already graded 40 papers and he still needed to grade more. write an equation for how many papers he is grading if he continues to grade 4 papers a minute

Agrain trader buys the following amounts from three suppliers: 3,200 pounds, 5,100 pounds and 700 pounds. what is the total weight of his purchase?

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

What is r i 4.5+10r=-6.5 with work pls