Find the unit rate for each, then compare. Which is faster? 8 laps in 70 seconds
12 laps in 98 seconds.

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Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.