Which of the following would use a convex lens?

magnifying glass
telescope
microscope
all of the above

All of the above

Explanation:

I clicked on magnifying glass because all of the above had low votes and and google told me magnifying glass but my teacher told me it was all of the above on odyssey ware.  

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2