How many 5/16s are in 1 whole 7/8

Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

Which of these tools or constructions is used to inscribe a hexagon inside a circle?