Which undefined term can contain parallel lines?

The sum of three numbers is 129. The third number is 4 times the first. The first number is 9 less than the second. What are the numbers?

what is the property of 12.2 + 18.6 + - 4.3 + (-18.6)

Suppose we are interested in bidding on a piece of land and we know one other bidder is interested. The seller announced that the highest bid in excess of $9,500 will be accepted.

What is the solution to the following system? | 3x+3y + 62 = 9 X + 3y + 2z=5 3x+12y + 12z = 18 (3, 1, 0) (0, 1, 0) (2, 1, 0) (-2, 1, 0)

An urn contains three red balls, four white balls, and two black balls.

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.