Suppose a sheet of 100 stamps is 0.77 millimeters thick. if a stack of sheets contains 100,000 stamps, how many millimeters thick is the stack? write the answer in scientific notation. 7.7 × 104 mm 0.77 × 103 mm 7.7 × 102 mm 77.0 × 101 mm

Find the value of the variable and the length of each secant segment.

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

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).