Answer:
5
Step-by-step explanation:
The rate a computer works is 1/time. Working together, you add the rates.
Let new computer be x, old computer be y.
x = y - 7

Rounded to nearest tenth gives:
x = 23 hours
That is correct. The log3 stays the same and the numerator goes first and then the denominator goes second. When it’s a fraction like that one, the standard form would be subtraction.
Step-by-step explanation:
(
2
x
)
2
−
3
2
=
(
2
x
−
3
)
(
2
x
+
3
)
Answer:
B is the awnser
Step-by-step explanation: