If half a gallon of milk is 3 dollars then you should be able to buy one gallon for 6 dollars. Therefore 5 dollars can buy 5/6 gallons of milk.
Answer:
Step-by-step explanation:
Pythagorean theorum: 5^2 +s^2 = 15^2 so 25 + s^2 =225
s^2 =200 so s = square root of 200 which is 10 times the square root of 2. So the first answer is right
The letters in the equation