I only have the answer for 3 and i believe it is 20,090
Melanie walked 2.2 miles. Cathy walked 1.75 times as far. This means that you need to do 2.2 * 1.75 which equals 3.85. To find how much further, do 3.85 - 2.2 which equals 1.65. Therefore Cathy walked 1.65 more miles than Melanie.
First, expand to make it easier
y=x(x^2+5)(x^2+5)
y=x(x^4+10x^2+25)
y=x^5+10x^3+25x
differentiation
y'=5x^4+30x^2+25 is the derivitive
A) 3b-7b
-4b
b) a+a-5a
-3a
c) -3-3r
cannot be simplified, no like terms
d) 7t-8t-8
-t-8
e) -15p-20
cannot be simplified, no like terms
f) -g-g-g
-3g
