Answer:
Step-by-step explanation:
An equation contains a sign equality (=) between two expressions.
And an expression is a simple algebraic statement.
By these definitions,
Equations Expressions
x = 2x + 5 21x - 13 + 11x
-3.7x - 13
3x + 1 = -2.1 
45 multiply 0.22 = 9.9
45-9.9 = 35.1
Markdown is subtract
Answer: $634.40
Step-by-step explanation:
Finding the average: Adding all the numbers, then dividing by the amount of numbers added.
524+715+670+588+675 = 3172
3172/5 = 634.40
Answer:
Figure A is scalene and probably obtuse.
Figure B is scalene and right.
Figure C is equilateral and acute.
Figure D is isosceles and right.
Figure E is isosceles and acute.
I am so sorry if I did a few wrong, I'm in Middle-School so I don't know much. I hope I get everything correct!