The polynomial function C(x)=6x2+40x gives the cost, in dollars, of an aluminium square of side x feet. Find the cost of an aluminium square of side x=7 feet.

salary

step-by-step explanation:

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}

answer: the correct answer is -32

step-by-step explanation:

x = 12

y = 1

for the points!