HYEOOWhich expression is equivalent to 72 + 45 A. 8(9+5)
B. 9(8+5)
C. 9(8+45)
D. 10(62 + 35)^{2}7/9 / 5/6

99 points at a zoo, the leopard pen has a ring-shaped sidewalk around it. the outer edge of the sidewalk is a circle with a radius of 12 m. the inner edge of the sidewalk is a circle with a radius of 8 m. (1 point for showing all of your work) a. write and simplify an expression for the exact area of the sidewalk. (1 point for the answer) b. find the approximate area of the sidewalk. use 3.14 to approximate π. (1 point for the answer)

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

What is the fewest number of full weeks briyana would have to work to have enough money? 8 weeks9 weeks 10 weeks11 weeks