Answer:
question 12 is answer B
question 13 is -8x^3
Step-by-step explanation:
exponent rule 
Step-by-step explanation:
Answer:
the statement that is not supported by the trend in this scatter plot is that each additional pound adds about 1 hour of cooking time. (last option)
We are given equation 2x+3y=9xy.
A linear equation is a equation that has maximum degree of the equation as 1.
Degree is the maximum power(exponent) of the variables.
If two variables are being multiplied together in a term, we can find power of the that term by adding powers of those variables.
In the given equation, on the left side we have two terms 2x and 3y, each opf the variable x, and y has power 1 and right side of the eqaution we have term 9xy. There x and y variables are being multiplied together.
So, the total power of the term would be 1+1=2.
So, the degree of the given equation would be 2.
Because degree of the given equation is not 1. Therefore, given equation is not a linear eqaution and it is a non-linear equation.
2/3 of the pie had been eaten, there is 1/3 left
