I'm confused with this problem

Francisco had 4.5 L of orange juice for a party. He needed a total of 6 L for all of his guests, so he made 1.5 L more juice. Did Francisco make a reasonable amount of juice for the party?

Evaluate and simplify the following complex fraction -5/-2 divided by 6/7

12 is what percent of 200

A rental car company charges $52 per day and $0.32 per mile to rent a car. Mr. Misel was charged $202.40 for a 3-day rental. Write and solve a equation to determine how many miles she drove.

Angela wants to celebrate her birthday by eating pizza with her friends. She wants to buy one box of pepperoni pizza for $9.50 and c boxes of cheese pizza for &*.50 each.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.