Answer:
yes, your score is good for a seventh grader.
keep it up and you can score more.
Answer:
The equation of line is given as 
Step-by-step explanation:
Point on the line given :

We can find the slope of the line first from the given points.
Slope
= Undefined.
The slope of the line is undefined which means that the line is parallel to y-axis.
From the points known to us we can tell that the line passes through 
∴ The equation of line is given as 
Answer:
3
Step-by-step explanation:
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
3^4 +9^2÷3^3-9^2
81+81÷27-81
81+3-81
3