Find the percentage of: a. 21% of 18 use a set of fraction operations method to find the percentage. b. 65% of 1500 use percentage as a decimal multiplier method to find the percentage. c. 89% of 350 use break it down, then build it up method to find the percentage.. d. 24% of $40 use any method to find the percentage but identify your method.

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step-by-step explanation:

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.