13. (a-b)^2=a^2-2ab+b^2
B is the answer
14. B is the answer
( x+9)(x-3)= x^2+6x-27
15. B is the answer
(x+6)(x-5)=x^2+x-30
16. D is the answer
(x-6y)(x-4y)=x^2-10xy+24y^2
17. C is the answer
(2x+5)(3x-4)=6x^2+7x-20
18. B is the answer
(5x+7)(x-2)=5x^2-3x-14

<em><u>Solution:</u></em>
From given question,
Number of pounds Jake carry = 
Number of pounds his father carry is
times as much as jake
To find: Number of pounds Jake father can carry
<em><u>Convert the mixed fractions to improper fractions</u></em>
Multiply the whole number part by the fraction's denominator.
Add that to the numerator.
Then write the result on top of the denominator

<em><u>Then according to question,</u></em>


Answer:
You should purchase the cereal at Weis
Step-by-step explanation:
the first options gives a rate of 25 cents per oz. the option that Weis offers is a rate of (0.1875round that up to 19) 19 cents per oz.