Nina pays $10 for admission to the fair. Each ride costs $3. Which expression shows the total cost for Nina after riding rrides?
A 3(r - 2) + 10
B 3r + 10
C 3(r + 2) + 10
D 13r - 2

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⭐

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step-by-step explanation:

hi there!

the answer will be d: 2