Answer:
Ms, Erickson added 6x^3 plus -3x^2 and these terms have different exponents.l
Step-by-step explanation:
Answer:

Step-by-step explanation:
1) divide each term in the numerator by the term in denominator:
(remember when dividing subtract the smaller exponent from larger exponent
for example:
say a is the larger exponent, do 
x^4/x=x^3
5x^3/x=5x^2
3x^2/x=3x
so
x^3+5x^2+3x
hope this helps!
Answer:
16
Step-by-step explanation:
To solve, we can use an equation finding the average of the siblings'ages.

Answer:
Multiply the w x h x l
Step-by-step explanation: