a) Find $110 \%$ of 80 b) Increase 80 by $110 \%$

Step 1 ：Find 110\% of 80 by multiplying 80 by 1.1: \(80 \times 1.1 = 88\)

Step 2 ：Increase 80 by 110\% by adding 110\% of 80 to the original value: \(80 + 88 = 168\)

Step 3 ：\(\boxed{\text{a) 110\% of 80 is 88}}\)

Step 4 ：\(\boxed{\text{b) Increasing 80 by 110\% results in 168}}\)