A 15-inch candle burns down in 10 hours. at what rate does the candle burn in inches per hour

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

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