Answer:
Domain is all positive real numbers. Range is all real positive numbers.
Step-by-step explanation:
When dealing with real life, negative and imaginary numbers are not a possible answer.
Answer:
$4.90 per towel
Step-by-step explanation:
Unit price is the price of one, and 19.60 is the price of four. We need to divide by four to get the price of one.
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<u>Hope this helps :-)</u>
Answer:

Step-by-step explanation:
Given


Required
Write an equation when sales = x
The equation can be written as:

This gives

Convert percentage to decimal


Answer:
$9.92 (rounded off to nearest cent)
Step-by-step explanation:
Square of 7-inch radius pizza =
= 49 inches
49 Inches = $6
Square of 9-inch radius pizza =
= 81 inches
Given 49 Inches = $6
1 inch =$ 
I will leave it as a fraction as it is not the final answer, rounding it off will result in a loss of accuracy.
81 Inches = 
= $9.92 (rounded off to nearest cent)
Yes.
For inequality equation, you only flip the sign when you divide a negative number into both sides, here you will divide 4 on each side, so you won't flip the sign.