Solve 1/3 over 5 = a over 20
A. a = 3/5
B. a = 3/4
C. a = 4/3
D. a = 5/3

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

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.

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.