5. Peggy wants to build a solid cube with a side length of 5 units. Peggy has 45 unit cubes. How many
more unit cubes does she need?

80

Step-by-step explanation:

V = s^3

V = 5^3 = 125

125 - 45 = 80

She needs 80 more unit cubes.

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⭐