What ratio is equivalent to 6/5

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.