Answer:
-10 is the correct answer to the given question .
Step-by-step explanation:
Missing information:
Following question is incomplete there is no information about the vertices and the rules .Following are the complete question that is mention below
Triangle PQR has vertices
It is translated according to the rule
. What is the y-value of P'?
Now coming to the solution as already mention in the question
The translated rule is 
Now calculated the vertices P value according to the rule of translated

So -10 is the value of y in P vertices .
I’m pretty sure it’s 1 if not sorry but yeah
Answer:
You can actually find the answer more easily with this website called Desmos.
It shows you how it works and graphs it for you.
Step-by-step explanation:
(7^2)x = 1
49x = 1
x = 1/49
Part B
7^0 = 1
so we have
1x = 1
x = 1
Ken:
Ken's Age = 18
Elizabeth:
Elizabeth's Age = 2/3 x Ken's age
Elizabeth's Age = 2/3 x 18
Elizabeth's Age = 12
Clint:
-Note: At Clint's <em>next</em> birthday. So we need to subtract 1 from the age.
Clint's Age = (2 x Elizabeth's Age) - 1
Clint's Age = (2 x 12) - 1
Clint's Age = 24 - 1
Clint's Age = 23 right now
Hope this helps!! :)