Your average monthly expenditure for gasoline during the first quarter was $167.70. You spent $147.20 in April and $172.90 in May. How much can you spend in June to have the same average as in the first quarter?

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image