Answer: 
Work Shown:
I'm assuming your teacher wants you to factor as much as possible.

In the last step, I used the rule that 
We cannot factor any further. If the first term was
instead of
, then we could use the difference of squares factoring rule.
Answer: y = 0.4x
In fraction form, this is y = (2/5)x
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Explanation:
For each row, divide the y over x values
- Row One: y/x = 0.8/2 = 0.4
- Row Two: y/x = 4/10 = 0.4
- Row Three: y/x = 6/15 = 0.4
- Row Four: y/x = 10/25 = 0.4
We end up with the same thing each time.
Since y/x = 0.4, this rearranges to y = 0.4x
Alternatively, you can write the equation as y = (2/5)x because 2/5 = 0.4
The answer is A. The probability that you draw hearts than spades is 1/16
If drawing more than one card with replacement:
The probability of drawing a specific card each time is 1/52n
n= the number of draws.
The probability of drawing a specific card each time is 1/13n.
The probability of drawing a specific suit each time is 1/4n.
Since you draw two types of cards,each time you drew is 1/4 so 1/4 times 1/4 is 1/16.
Kind of cofusion right