Answer and Step-by-step explanation:

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Answer:
x is 6 i believeee if you're solving for x!!
Step-by-step explanation:
-2log_5 7x = log_5 2
log_5[1/(7x)^2] = log_5 2
log_5(1/49x^2) = log_5 2
log_5(1 - 49x^2) = log_5 2
1 - 49x^2 = 2
You finish.
Answer:
126 km/h
Step-by-step explanation:
Sorry if I'm wrong:/
1 dozen = 12
Divide 941 by 12:
941 / 12 = 78.42
So the greatest number of dozens he can make is 78.