There is 3/4 cup of whatever in one serving. If that serving amount changed to 2, then the 3/4 would be multiplied by 2. If there is half a serving, then it would be divided by 2. There is a constant change, and not one that is always changing.
Answer:
a. 
b. 
Step-by-step explanation:
change switch x and y and then solve for y.
a. 
same for b.
b. 
Elements of N should be like {6,7}
As soon as you see "How many times . . .", that usually tells you that finding the answer involves <em>division</em>. (It certainly does in this one.)
(1.2 x 10⁵) / (4.9 x 10³) =
(1.2/4.9) x (10⁵⁻³) =
0.245 x 10² = <em>24.5 times</em>
It looks like <em>B</em> is the closest choice.
