Answer:
6. d.
8. see below
Explanation:
6.
A large pizza costs $4.25 more than a medium pizza.
L = $4.25 + M
4 large & 6 medium cost $99.50.
4L + 6m = $99.50
Answer d.
8.
A large river runs right through a city called Chestnutville. There are many bridges and tunnels connecting the two sides of the river. The total number of bridges and tunnels is 15. The number of tunnels is 3 more than twice the number of bridges. How many bridges, b, are there in Chestnutville, and how many tunnels, t, are there in Chestnutville?