How to solve 7x+7y=3

What is 5 divided by 2/20

Eva's bedroom rug is 2 3/4 ft long and 2 1/2 ft wide what is the area of the rug

You roll a number cube numbered from 1 to 6. What is the probability that the number is 3?

Considerando quadrados da mesma área, com 4 palitos de fósforo formamos um quadrado, com 7 palitos de fósforo 2 quadrados, com 10 palitos de fósforo 3 quadrados. Entao, com 40 palitos formamos quantos quadrados?

Mallanie 2 years older then Bill. Bill is 27 years old

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.