Write an exponential decay function to model each situation. Compare the average rates of change over the given intervals. 21.) Initial Value: 50
Decay Factor: 0.9
1<x<4
5<x<8
22.) Initial Value: 25
Decay Factor: 0.8
2<x<4
6<x<8

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Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.