A 13 foot ladder is leaning against a brick wall the top off the ladder touches the wall 12 feet above the ground the bottom of the ladder is 5ft from the bottom of the wall what is the sine of the angle formed by the ground and the base of the ladder

The price of a box of 15 cloud markers is $12.70. the price of a box of 42 cloud markers is $31.60. all prices are without tax, and the price of the packaging is the same for any size. how much would 50 cloud markers in a box cost? write an equation which will tell the price p for the number n markers in the box.