The sum of ages of a man and his wife is 81. The ratio of their ages is 5:4. Find the age of the younger person. (A).30 years
(B). 36 years
(C). 45 years
(D). 51 years​

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

At 6 1/2 cents per pound of string beans how much does 7 pounds cost

Abowl contained 270 starbursts of all different colors. if the probability of picking a yellow is 1/9, then how many yellow starbursts are in the bowl ? ?