The scale of a room in a blueprint is 2 inches : 1 foot. A window in the same blueprint is 12 inches. A mantel in the room has an actual width of 8 feet. What is the width of the mantel in the blueprint?

What are correct trigonometric ratios that could be used to determine the length of ln

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.