Order of operations.
Parentheses: there are none
Exponents: also none
Multiplication: also none
Division: yep. 45 / 3 = 15
Addition: none
Subtraction: Yes
The absolute value of -5 is 5. (Absolute values are always positive or 0)
5-15= -10
Here is the answer but basically the work you just plug in 6 for A, 12 for B, and 5 for C..into the quadratic formula and solve from there
X^4 is the simplified answer
100%-20%= 80%=0.8
115(0.8)= 92
92(1.075)= 98.9
The final price of the coffee table is $98.90.
Hope this helps!