ONLY ANSWER IF YOU KNOW IT
Graph the system of equations on your graph paper to answer the question.

{y=2x+7
(y=−4x−5

What is the solution for the system of equations?

Enter your answer in the boxes.

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

We just started the introduction into circles and i have no idea how to do this.