Insert grouping symbols (parentheses) so that each given expression evaluates to the given number. 1. 2 +

Question:

Insert grouping symbols (parentheses) so that each given expression evaluates to the given number.
1. 2 + 3 · 6 - 2; evaluates to 20
2. 24 ÷ 3 · 2+ 2 · 5; evaluates to 15
3. The building contractor from Exercise 99 plans to charge $4 per foot for installing vinyl gutters. Find the total charge for the seven homes given the total perimeter answer to Exercise 99.