The cost of 4 bicycles at $165 each plus the cost of 3 tricycles at
$54 each

4. find the geometric mean of 4 and 12. 24 8

Find the area of the regular hexagon if a side is 20 cm.

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.