Step one:

12h-7=7h+18

12h-7h-7+7=7h-7h+18+7 Additive inverse

5h=25

Step two:

5h=25

5/5h=25/5 Multiplicative inverse

h=5

Because all the angles are congruent (the same), this is an equilateral triangle. All equilateral triangles have congruent angles and congruent sides, so all sides has to be 14.

The percentage of profit margin that

the plumbing supplies manager realizes that he has = 15%

Total sales for the month made by the plumbing supplies manager = $23000

Then

Amount of profit that has been made

by the plumbing sales manager = 15% * 23000 dollars

= (15/100) * 23000 dollars

= 15 * 230 dollars

= 3450 dollars

So the plumbing manager makes a profit of $3450 in the month as can be seen from the above deduction.

Percent means per one-hundred. change the mixed number to an improper fraction. rule:

a b/c=(ac+b)/c

20/3 and as a percent p/100 this is:

20/300 so

24(20/300)

480/300

$1.60