a skater skates all the way around the two circles shown below. each circle has a diameter or 20 meters. what is the approximate total distance skated?

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Which ratios are equivalent to 10: 16? check all that apply. 30 to 48 25: 35 8: 32 5 to 15