Answer: Total amount is 108 because 9 times 4 is 36. So 36+36+36=108
Answer:
Step-by-step explanation:
-4=2x+16
-16. -16
-20=2x
20/2=2x/2
10=x
<h3>
Answer: 22%</h3>
Explanation:
amount saved = 350-273 = 77 dollars.
Divide this amount over the original price
77/350 = 0.22 = 22% is the discount rate
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Answer:

Step-by-step explanation:
Recall that the formula for density is:

therefore for this case we have:
