John is 27 years old. His brother James is 15 years old. What is the ratio of John's age to
his brother's? A. 5:9 B.9:4 0.9:5
D.3:5 E. 5:3​

What is the total surface area of this square pyramid?

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?