How to start the problem off. (substitution)

answer: 19 is   2

step-by-step explanation: i just looked at your answer and wrote it down

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⭐

table 3 represents a direct variation function. : )