1. Solve for x: x/12 + 15 = 648 x=__
2.Solve for x: −4(1.75 + x) = 18
x=__
3.Solve for x: 6x - 9 = 42
x=__

Step-by-step explanation:

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1. x = 7596

2. x = -6.25

3. x = 8.5  

hope this helps:)

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⭐

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5