In a hotel, visitors take the elevator from the first floor to their room on the middle floor. later, they return to the elevator and take it up two floors to see the workout room. then they go down four floors to visit their friends' room. finally, the entire group travels up eight floors to the top floor of the hotel. how many floors does the hotel have?

What is the value of 1/3x + 7x when x = 5

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below. the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

How can i differentiate this equation?