exam Maths Puzzle Numerical Ability

A rectangular painting with a width of x centimeters has an area x^2 + 50x square centimeters. Find a binomial that represents the length.

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exam Other Question

roise's palm pirates, a manufacturer of electronic organizers, estimates that when x hundred palm pirates are made, the averages cost per unit is given by C(x)=0.4x^2-3.69x+9.524, Please help with the following:

State a function for the following:

x= 1,2,3,4
y=20,16,12,8