The sum of two numbers is 46 and the difference is 10 . what are the numbers?

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

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: