If you receive an 80%, 75% , 70% and 82% in four math tests, what grade do you need to on the fifth test to average an 80% in the course. Remember to set up the linear equation and solve.

93% on the final test

Step-by-step explanation:

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

4x and 6y

im not sure though