9. Jeremy receives a base salary of $25,000 plus 5% commission on his sales. Jeremy received a total salary of $45,000 last year. How much were his total sales?
a. $20,000
b. $70,000
c. $400,000
d $900,000

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