Determine whether this table represent a constant rate of change. number of items
1
2
4
7
cost ($)
4.50 9.00 18.00 31.50
Yes
No

Yes

Step-by-step explanation:

1 is 4.50

4.50*2=9

4.50+4.50

(4+4) + (0.50+0.50)

4.50*4=18.00

4.50+4.50+4.50+4.50

(4+4+4+4) + (0.50+0.50+0.50+0.50)

4.50*7= 31.50

4.50+4.50+4.50+4.50+4.50+4.50+4.50 0.50

(4+4+4+4+4+4+4) + (0.50+0.50+0.50+0.50+0.50+0.50+0.50)

Sorry if I confused you more when I broke it down. I just remembered the easiest way I learned

vbbv

step-by-step explanation:

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⭐