How to solve 21.08 divided by 3.4

2x - 6y 3x2 7y - 14x.

What is the system subtitution of 2y=x+1; - 2x-y=7

If a number is not a perfect square is it rational or irrational? EX: the square root of 5

98% of 30 what the percent

5v to the 4th power - 5 = ?

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.