Answer:

or

Step-by-step explanation:
Divide the numerator and the denominator by the same number:

or
Multiply the numerator and the denominator by the same number:

D. 21cm because you divide all sides by 2 then get your slope form and multiply by seven
Answer:
40/7 = 5 5/7
Step-by-step explanation:
$1.60
Divide 80 by 50 to find the cost of one brownie which will then lead you to get you the answer of $1.60