Which is larger 1:40 or 1:60

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

Which of the following best describes the delian problem?