The problem is to increase 80 by 15%. This means we need to find 15% of 80 and then add that amount to 80.

1. Problem Description

The problem is to increase 80 by 15%. This means we need to find 15% of 80 and then add that amount to

8

0.

2. Solution Steps

First, we need to calculate 15% of

8

0. To do this, we convert the percentage to a decimal and multiply by

8

0.

Percent to decimal conversion:

$15\% = \frac{15}{100} = 0.15$

Now, we multiply:

$0.15 \times 80 = 12$

Next, we add this increase to the original number:

$80 + 12 = 92$

3. Final Answer

92