I need help with this question. Please explain.

C

Step-by-step explanation:

just think ab it and you can figure it out using real worl problems

B

Step-by-step explanation:

You would have to find the factors of 63 and 42

For 63 it is 3,3,7

For 42 its 2,3,7

They both share a 3 and 7 and when multiplied it gives you 21

Then theirs 2 R's that are being shared and 3 T's that are being shared

ok

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⭐