About 2% of the people in the world have red hair. there are about 7,000,000,000 people in the world. about how many people have red hair?

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).

X+y ≥20 x≤2y a) (0,22) b) (7,11) c) ( 15,6) d) (10,10) e) (12,5) f) (8,16)