If the sale of an article resulted in a loss of 20 per cent on the cost price, then the cost price as a percentage of the selling price is. (A). 75% (B). 80% (C). 120% (D). 125%

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax