The frequency table shows the distribution of 1,200 students at a high school. to the nearest percent,
what percentage of females are freshmen or sophomores?

What is the value of the expression below? (81^2)^1/8

What are the soultion(s) to the quadratic equation 40- x^2=0

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.