the amount you'd have after the work is $1.55
step-by-step explanation:
you subtract 95% from $31.
7! = 7Γ6Γ5Γ4Γ3Γ2
3! = 3Γ 2
as 7! is multiple of 3! because 7! contains 3! that is 3Γ 2 as factor
so 7! /(3! ) = 7Γ 6Γ 5Γ 4
= 42 Γ 20
= 840
its b) 840βββ
dhruvβ