Winnie wrote the following riddle i am a number between 60 and 100 my ones digit is two less than my tens digit i am a prime number what number does winnie's riddle describe explain

What number should be added to both sides of the equation to complete this square? x^2-10x=7

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.

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width