Answer:
x^2+14x+49 ( it could be polynomial because it has 3 terms and each term has a whole number and a coefficient)
Step-by-step explanation:
(x+7)^2
(x+7)(x+7)
x^2+7x+7x+49
x^2+14x+49
I am not sure it's a polynomial or not
Answer:
5,4 = 1.25 . 5,2 = 2.5
Step-by-step explanation: to find the slope you divide the two number given or use a graph and plot the points, and divide!
Answer: y = 6x + 400
slope = the increase in cost per extra plate
y-intercept = total cost
Answers:

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Work Shown:


P = perimeter

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A = area

He needs 138 bars to feed them.if he bought 14 packs of 10 granula bars he would have 140 thus 2 will be left. so the answer is A