Answer:
The expression with grouping symbols is, 
Step-by-step explanation:
Grouping symbols are used to show what should be done first in the math expression.
Parentheses are the most common grouping symbols.
Given the expression: 3a -3
to rewrite this expression with grouping symbols:
Place the parentheses

Therefore, the expression with grouping symbols is, 
The answer is true because it comes at an angle which is adjacent to what needs to be the answer
Hoped this helped
Answer:
540°
Step-by-step explanation:
Formula: note that n means nr of sides
(n-2)×180°
(5-2)×180°=3×180=540°
Where each angle are 540°÷5=108°
No, it isn't!
first, the discount is 20 percent of 18 dollars, that is 18/5=3.6
this means that during the first week the prize is 18-3.6=14.4
now, the prize is marked up 20 % of 14.4! this is 2.88
so the prize later will be 14.4+2.88, that is 17.28, not 18
what is relevant here is what a number is a percent OF
What is longer 1/3 minute or 3/4 minute your answer should be 3/4 minute