What is the squiggly line above the equal sign

How do you find a degree of a polynomial? (I will mark brainest!)

Rob weighed 2 boxes. the combined weight of the boxes is 128 pounds. the ratio of the weight of box A to the weight of box B is 3:1. Which of the following is closest to the weight of box A

The variables x and y vary inversely with a constant variation of 6. Find y when x=12.

53,010,000 in scientific notation

What is the sales tax rate if a $7,190 purchase will have $568.01 of sales tax added to it?

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.