1. Multiply and simplify.
3.xy^4 z^2 . 5x²yx

a. 15(xyz)^11
b. 15x^4y^5z^2
c. 8x^4y^5z^2
d. 15x^2y^4z^2

2. simplify
4x^2 (5x^4 -3x^2 +x-2)
a. -20x^6 + 12x^4 - 4x^3 + 8x^2
b. -20x^8 + 12x^4 - 4x^2 + 8x
c. -20x^6 + 12x^4 + 4x^3 - 8x^2
d. -20x^6 - 12x^4 + 8x^3 -8x^2

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

How do the graphs of y = 1/x and y=5/x+6 compare?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?