Geometry-

true or false: we can use existing theorems to prove new theorems

Ahmad drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 8 hours. When Ahmad drove home, there was no traffic and the trip only took 5 hours.

Berto has $12 to put gas in his car. If gas costs $3.75 per gallon, which ordered pair on the graph of the line relating number of gallons of gas, x, to the total cost of the gas, y, includes the greatest amount of gas Berto can buy?

Kathryn is thinking of four numbers from 1 through 9 with a sum of 18. Each number is used only once

What is the answer 7x-6=1

Mark ran 11.3 miles on Monday 12.64 miles on Wednesday and 11.9 miles on Friday how many miles did mark run together?

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.