Which shows 21/12 as a mixed number in simplest form

a. 6 1/4
b. 6 1/2
c. 6 2/4
d. 6 3/4

If the dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ſt, what is the surface area?

The statement tan theta= -12/5, csc theta=-13/12, and the terminal point determained by theta is in quadrant two

Koda is making birdhouses for a park. the instructions tell him how many of each wooden shape is needed for one birdhouse. complete each statement to adjust the number of shapes for each new situation if he follows the given instructions. to make 8 birdhouses, koda will trapezoids.  for koda to make birdhouses, he will need 12 rectangles. if koda uses 4 squares to make birdhouses, he will use triangles.