Is 5.787787778 a rational or irrational number explain

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?

Which graph of a hyperbola represents the equation 16x^2-y^2=16