Simplified would be 21/1
Would be 21
While both a and c work the most likely answer that they want would be A because it represent the cents already and it shows all possible ways that those two values can be split among 1 dollar
Well it depends on how you write it 0.36 is lower and so is .36 and any numbers added will make the number smaller like 0.364
Rewritten: y=15x + 50
slope: 15
y intercept: (0,50)
Cross multiply the denominators by the numerators. In other words, 12 times 3 and 7 times x (x, being our missing number).
We end up with 36 and 7x.
Divide both sides by 7.
36/7x = 5.14
x = 5.14
Hope this helps!