I'm pretty sure the answer is D. because I don't think anyone would want to take their total meal cost and then multiply it by their tip to make it even larger. You would just add the tip to the meal cost.
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Answer:
a. Positive
b. Negative
c. Negative
d. Positive
Step-by-step explanation:
I hope this helps! May I please have brainliest? :)
Longer wavelength means lower frequency (lower pitch)
Answer:
Step-by-step explanation:
The equation Thomas wrote is:
...equation 1
Let us subtract 3x from both sides to get:
We now multiply through by 2 to get:
....equation 2
We can see that equation one and two are equivalent and hence have the same solution.
Therefore Sandra's equation is
