Answer:
12
Step-by-step explanation:
3 7/12 - 1 2/3 = <span>1.916666... hours
So dinner was 2 hours rounded up.</span>
Answer:
x=4 and the solution is not extraneous
Step-by-step explanation:

This solution is not extraneous, because plugging it back in you get:

Hope this helps!
7 times x to the three fourths power in radical form is Fourth root of quantity 7 times x to the third power.
So, Option C is correct.
Step-by-step explanation:
We need to write 7 times x to the three fourths power in radical form
First writing 7 times x to the three fourths power in mathematical form:

Writing it into radical form:

We know 1/4 = ![\sqrt[4]{}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B%7D)
So,
![\sqrt[4]{(7x)^3}](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B%287x%29%5E3%7D)
Writing it into words:
Fourth root of quantity 7 times x to the third power.
So, 7 times x to the three fourths power in radical form is Fourth root of quantity 7 times x to the third power.
So, Option C is correct.
Keywords: Radical Expression
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The volume would be 5 because in order to find volume you need to divide mass over density. V=m/d