This is cross multipication. Multiply 117 times 36 together for that you would use a calculator. You get 4221. Next step is to multiply x and 12 together that would be 12x.
4221= 12x
Divide by 12 on both sides:
x= 351
351 is # of trouts in the lake .
Answer:

Step-by-step explanation:
Area of Rectangle = Length x Breadth
=

Answer:
C≈18.85mi
Step-by-step explanation:
E.G : to solve the equation for the diameter of the circle, d= C/π. In this example, "d = 12 / 3.14." or "The diameter is equal to twelve divided by 3.14." Divide the circumference by pi to get the answer. In this case, the diameter would be 3.82 inches.
Answer:
2nd one have a good day ;)
Just use distributive property (multiply 7 times 7k and 7 times -10 )
This equals 49k-70
Hope this helped :)