The area of a circle is 13 square feet. Which is the best estimate of the radius of the circle?

A. 2 feet
B. 4 feet
C. 8 feet
D. 26 feet

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?

I’m confused on how to work the pie charts