If 40% of a number is 28, find 10% of that number.

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Awoman who is 64 inches with a shoulder width of 16 inches. write an equation relating the height h to the width w. find the height of a woman who has ashoulder width of 18.5 inches