What are the solutions to the system of equations?

x² + y² = 5

y = 2x

The measures of two of the angles in a triangle are 126 play 7° in 19° find the measure of the third angle

A cyclist rides down a long straight road at a velocity (in m/min) given by v (t) equals=100100minus-1010 t, for 0less than or equals≤tless than or equals≤10. a. How far does the cyclist travel in the first 33 min? b.

What is the discriminant of the quadratic equation 0 = - x2 + 4x - 2? a.-4 b. 8 c. 12 d. 24

A six-sided die is rolled. What is the probability the die will not land on a 1?

Mark and Sidney had identical pieces of wood. Mark used 1/3 of piece wood. Sidney used 5/8 if her pieces of wood. Who used more Mark or Sidney? Explain how much you can tell using benchmark number

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.