Find the volume of a right circular cone that has a height of 6.7 in and a base with a circumference of 9.8 in. round your answer to the nearest tenth of a cubic inch.

What graph correctly matches the equation y equals two negative x

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

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.