3. Robert earned $4 each hour doing chores for his
neighbors. He also earned $20 working for his
mother. Altogether, Robert earned $80.
In the space below, write an equation that shows
this situation. Use your equation to find the
number of hours Robert worked doing chores for
his neighbors.

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.