The measurements of all the angles of a triangle

The sum of two numbers is 20. The difference between three times the first number and twice the second is 40. Find the two numbers.

Simplify fraction 80/25

Jose is riding his bicycle. He takes 4 hours to ride 25.6 kilometers. What is his speed?

What number would x be for 2x+1/3 and 2x be the same equation

Henry knows that the circumference of a circle is 56.52 inches. What is the area of the circle? (Use 3.14 for Pi and round to the nearest hundredth)

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.