Answer:
The rate of change per week is $6.
Step-by-step explanation:
56 - 14 = 42
42/7 = $6
6 dollars were added each week.
20
7
No. of pizza Ronnie stacked = 0.25 × 40
= 10
No. of pizza Mack stacked = 9
No. of pizza Kim stacked = × 40
= 14
No. of pizza Ada stacked = 40 - 10 - 9 - 14
= 7
Add 1+1