Your friend finds the sum. Is your friend correct ? Explain your reasoning. 3/10+(-1/10)=4/10=2/5

What is the product? (x2+3y+7) [yy+1)

Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?

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