Please help i have so many timed quizzes Write an expression for the perimeter of the triangle shown below:
10x − 9

10x − 39

5.5x − 9

5.5x + 9

Answer this question! 30 points and brainliest!

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Twenty points. 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