Answer:
What is pi? The number π (/paɪ/) is a mathematical constant. It is defined as the ratio of a circle's circumference to its diameter, and it also has various equivalent definitions. What are the first 3 numbers of pi? 3.14. Who invented Pi? The symbol π was devised by British mathematician William Jones in 1706 to represent the ratio and was later popularized by Swiss mathematician Leonhard Euler.
Step-by-step explanation:
Find ing the common denominator would make it 10.
for 1/2 to get to 10 you have to multiply by 5
1/2x5= 5/10
then you have to convert 2/5 to get the denominator to be 10
so you multiply 2/5 by 2
2/5x2= 4/10
5/10 is greater than 4/10
Answer:
<h2>y = 0.5x</h2>
Step-by-step explanation:

128 ounces in a gallon
The pack is 33.84 ounces in total
gallon for 7=18 cents per ounce
pack for 2.39 is .07 cents per ounce
So the pack is a better deal