15*0.07= 1.05 so 7% of 15 is 1.05. we add this to the total so 7% tax is going to be a price of $16.05
Answer:
20%=8
10%=?
by cross multiplications,
10×8=80
80÷20=4
Hence the answer is 4.
Repetition is a guaranteed way to learn something. If it is a formula you need to learn, try doing flashcards and reading it over and over again until you can spell it without the flahcard. If it is something like factoring, just do a bunch of factoring problems until you get the feel of it.
Answer:

Step-by-step explanation:
- For a horizontal compression, we multiply whole numbers greater than 1 in front of
of the given function. - For horizontal expansion, we multiply by the reciprocal of the number for horizontal compression, in front of
of the function.
For example,
If we wanted to <u>horizontally compress</u>
, we would multiply by 4 to get
, and
if we wante to <u>horizontally expand</u>
, we would multiply by
to get 
Since this question asks for horizontal compression, we multiply the
of the function by 4. So the function we need is
. The second choice is correct.