Use substitution to solve the system of equations.
a.
(–7, –1)
b.
(–3, 1)
c.
(0, –5)
d.
(1, 3)

The graph shows the distance kerri drives on a trip. what is kerri's speed?

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.