How will the graph change if the car fee is changed to $10 (the total cost to take the ferry is a $12 fee for the car plus $3 per passenger)

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?

What is the simplified form of square root of 400 to the 100th power ?