If a•b=b, what must the value of a be?
A.1
B.0
C.2
D. b

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:

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)

Rob filled 5 fewer plastic boxes with football cards than basketball cards. he filled 11 boxes with basketball cards.