Answer:
140 Spirit buttons per hour
Explanation:
From the above question:
3 1/2 hours = 490 spirit buttons
1 hour = x spirit buttons
Cross Multiply
3 1/2 hours × x = 1 × 490 Spirit buttons
x = 490 spirit buttons/ 3 1/2 hours
x = 490 ÷ 3 1/2
x = 490 ÷ 7/2
x = 490 × 2/7
x = 140 Spirit buttons
Hence, the Pep club members make 140 Spirit buttons per hour