Sharon suspects that her brother's penny is unfair. she flips it 50 times and heads comes up 40 times. based on these trials, the probability that a flip of this coin comes up heads is

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

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.