Carpet cleaner a charges $28.25 plus $18 a room. carpet cleaner b charges $19.85 plus $32 a room. which equation can be used to find the number of rooms for which the total cost of both carpet cleaners is the same?

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Luke wants to reduce the area of his rectangular garden by 1/4 the expression 14/w can be used to represent this change. what is another way to write this expression?