Khan academy
asap
10 points

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

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

For what value of (y) is 3^3/3^y =1/9