exam Maths Puzzle Numerical Ability

How do I find and interpret the cost, in thousands of dollars, of producing q kg of a chemical given by C = f(q) = 100 + 0.2q?

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exam Other Question

apples are sold at the market for a 8-pack $4 , a 10-pack for $5 ,and a12-pack for $6. write the equation for the function describing this price structure. Let p stand for the pric How many positive real solutions are there in:
f(x)=-2x^4+3x^3+7x^2+2

a)0

b)2

c)1

d)None, there is no x-term