Elaine and her 3 friends purchased snacks after school for $3.60. if each person paid an equal amount, how much did each person pay?

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible