Answer:


Step-by-step explanation:
<u><em>The correct question is</em></u>
Translate the sentence into an equation using n as the unknown number. Then solve the equation for n.
5 increased by half a number is 11
Let
n ----> the unknown number
we know that
The linear equation that represent this situation is

solve for n
Multiply by 2 both sides

subtract 10 both sides


Answer:
<h2>15</h2>
Step-by-step explanation:
Let x = m∠abc
6x-7 = 4x+23
⇔
6x - 4x = 23 + 7
⇔
2x = 30
⇔
x = 15
[2+(9x3)]x3
Solve for parentheses
[2+(27)]x3
Brackets are solved before the rest of the equation, but always parentheses first
[29]x3=81
The answer is 81.
Hope this helps, and hope I was the brainliest! :)
Not sure if the math is correct but I think that it is $199.5