Which ratio is the simplest form of 42 : 28 ?
A) 2:1
B
21:14
3:2
2
D) 2:3

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

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?

To decrease an amount by 16% what single multiplier would you use