Answer: r= -3
Next 3 terms following 54 are -162, 486, -1458
Step-by-step explanation:
100 = 40 + 3x
Subtract 40 from each side
60 = 3x
Divide each side by 3
20 = x
The highest price of a sweatshirt can be $20
100 = 40 + 3(20)