Jessica has 3 cards in a bag, each marked with a letter. The letters are X, Y, and Z.
Without looking, she reaches into the bag, pulls out a
card, and then puts the card back in the bag.
If Jessica does this 3 times, what is the probability she pulls out the X card first, then the Y card, and then the Z card?

Ineed to know the answer to this algebra question.

Two numbers have a sum of -19. one number is x. what expression represents the other number?

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u. s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u. s. dollars for every 100 euros. b. gabriella averages 100 u. s. dollars for every 25 euros. c. gabriella can exchange 75 u. s. dollars for 100 euros. d. gabriella can exchange 100 u. s. dollars for 75 euros.