Perimeter of a triangle formula

What is the difference (2x-3) - (x-1) ? O X-4 O x-2 O x+2 Ox+4

Janie bought 14 pairs of sock at 2.00$ each. She paid for the socks with two twenty-dollar bills. Calculate the money Janie received back after making the purchase?

What's the median of 3,8,9,3,5,8,3

An elementary school teacher wants to know if problems on a math worksheet are too difficult for students. She solves the first and last problem in every row and finds two problems that would be difficult for her students.

What is 34/100 in simplest form?

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.