Algebra
posted by Don .
A certain kind of animal weighs about 71 pounds at birth and gains about 2 pounds per day for the first few weeks. Determine those days for which the animal's weighs more than 117 pounds.
The animal's weight is more than 117 pounds when the animal is more than__ days old.
I said 89 days old

How can he be 89 days old when he's only gained 46 pounds?

He would be 23 days old. If he has only gained 46 pounds. Right?

A certain kind of animal weighs about 71 pounds at birth and gains about 2 pounds per day for the first few weeks determine those days for which the animals weight is more than 117 pounds
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