<h2>-Answer :</h2>

<h2><u>Solution</u> :</h2>
Here we go :





Answer: Center: (4,0), Radius: 4.
Answer:
B. Sometimes I am pretty sure
he uses 100 grams for 10 cups
20% more would be 100 *1.20 = 120 grams for 10 cups
15/10 = 1.5
120*1.5 = 180
he needs 180 grams for 15 cups.