A card is selected at random from a standard deck of playing cards. Compute the probability that the card is a 10. (Enter the probability as a fraction.)

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

What number is 7 units left of -15?