Which description can be written as the expression 8/21n? () the quotient of twenty-one times a number and eight

() the product of eight and twenty-one times a number

() the quotient of eight and twenty-one times a number

() the quotient of twenty-one times a number and eight

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Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.