When you add two integers with the same sign, do
you add or subtract the magnitudes of the numbers?

the denominator stays the same and the numerator gets added or multiplied

Step-by-step explanation:

break it down

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72

the answer on ed. is:

c. "the graph of f(x) has exactly two x-intercepts."

hope i could someone! : )