Can someone explain this? i know the answer but i don't know how to work it out.

step-by-step explanation:

try remembering the steps

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⭐

only 10/60 isn't equivalent

hope this : )

6 spoons of sugar for every 21 cups of flour

step-by-step explanation: