PLS HELP Describe the error in solving for one of the variables in the linear system

8x+2y=-12 and 5x-y=4

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

What is the value of x? enter your answer in the box. photo attached.

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.