Kylie starts with $145 in her piggy bank. Each month she adds $20.

Mathematics

1 answer:

djverab [1.8K]3 years ago

4 0

Kylie's first month collection, a1= $ 145

Second month collection , a2= $145+ 20

Third month collection, a3 = $145 +2*20

so for n months collection = an-1+20

We get an= 20 + an-1 and a1=145

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