Answer:
B. 5438
Step-by-step explanation:
[(78-65)×626]-2700=5438
Lois will sell her tee-shirt for $13.20
The percentage profit =
× 100
Profit = Selling price - cost price
Cost price is the total amount expended in making the tee-shirts
cost price includes cost of buying blank shirt , cost of fabric paint and amount Lois pay herself
cost of buying blank shirt = $1
cost of fabric paint = $1
amount Lois pay herself =
x $6
x $6 = $9
Total cost price = $1 + $1 + $9 = $11
0.2 = 
profit = 11 x 0.2 = $2.2
$2.20 = selling price - $11
selling price = $11 + 2.20 = $13.20
To learn more about selling price, please check : brainly.com/question/15533091?referrer=searchResults
Answer:
f^-1 (x) = x/5
Step-by-step explanation:
f(x) = 5x
Replace f(x) with y
y= 5x
Exchange x and y
x = 5y
Solve for y
Divide each side by 5
x/5 = 5y/5
x/5 = y
The inverse is x/5