Sienna planned a rectangular pool, as shown in the scale drawing below. A rectangle with length 11 inches and width 7 inches.
She decides to change the length, the longer side of the pool, from 22 ft to 27.5 ft. Which expression finds the change in the scale factor?
StartFraction 11 inches over 27.5 feet EndFraction
StartFraction 22 feet over 11 inches EndFraction
StartFraction 22 feet over 27.5 feet EndFraction
StartFraction 27.5 feet over 22 feet EndFraction

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.