The Ionic Blast hairdryer does a great job removing the frizz from Francesca's hair. Therefore, since Gabriella's hair is virtually identical to Francesca's, probably the Ionic Blast would do a good job removing the frizz from Gabriella's hair. A) Slippery slope.
B) No fallacy.
C) False cause.
D) Appeal to unqualified authority.
E) Weak analogy.

B) No fallacy.

Step-by-step explanation:

There is no fallacy in these sentences. There is no slippery slope since the comparison doesn't include any prediction for the consequences. There also no authority mentioned in the question. The analogy is not weak since Gabriella's hair virtually identical to Francesca's. It's hard to prove that something false cause just from one occurrence, you can assume it's not since there is no further information.

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3