15. Colortime Bakers wants to make 30 pounds of a berry mix that costs $3 per pound to use in their pancake mix. They are using blueberries that cost $2 per pound and blackberries
that cost $3.50 per pound. How many pounds of blackberries should be used in this
mixture?
F 10 lb
G 20 lb
H 25 lb
J 30 lb
16. Your teacher is giving a test that has 12 more three–point questions than five–point
questions. The test is worth 100 points. Which system represents this information?
A x + y = 12 B x + y = 12 C x – y = 12 D x – y = 12
5x + 3y = 100 3x + 5y = 100 5x + 3y = 100 3x + 5y = 100

The avenues in a particular city run north to south and are numbered consecutively with 1st avenue at the western border of the city. the streets in the city run east to west and are numbered consecutively with 1st street at the southern border of the city. for a festival, the city is not allowing cars to park in a rectangular region bordered by 5th avenue to the west. 9th avenue to the east, 4th street to the south, and 6th street to the north. if x is the avenue number and yis the street number, which of the following systems describes the region in which cars are not allowed to park? 5th ave 9th ave