book Maths Puzzle Numerical Ability

A manufacturer can produce and sell x radios per week at a total cost(in dollars) given by the equation... C=73x+25,000 ...Given the total revenue for selling x radios on the retai

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book Other Question

what is the algebraic expression for the verbal expression six times a number The directions say to use the quadratic formula to find the roots of the following polynomials:
a) 6x^2-6-5x
b) 6x^2-6x-5
but no matter how i solve it all my soloutions are inc