Yael bought two magazines for $5 and some erasers that cost $1.00 each. He could only spend $25. How many erasers could he buy ?
1 answer:
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Answer:
= - 2
Step-by-step explanation:
A geometric recursive formula has the form
= r
where r is the common ratio
Here r = - 14 ÷ 7 = - 2, thus
= - 2
with a₁ = 7