Solve 3x-2y=20 for y

What is the formula for an arc length

Barbara invests £14000. In the first year she earns 5.9% interest. In the second year, she earned 3.2% interest. What was the fotal increase over the 2 years

How many times does 85 go into 100

Which equations represent inverse variation? y = 2x pv = 13 z = 2/x 4 = y/x h = 9g/5

Im trying to figure out how to do this 3t-7=5t, then 6t = i want to know how they get the answer - 21

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.