Simon and Jory worked together to put up a fence in the backyard. Together it took them 8 hours to complete. Simon was only able to help for 2 hours. Which value is equivalent to the fraction of hours Simon was able to help? 0.28
28%
25%
2.5​

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.