The first ratio is 1:4 so if x is 6 then 6x4 is 24 your answer is 24.
Answer:
We are finding hypotenuse:
6^2 + 8^2
36 + 64 = 100
Now we need to find a number that should be squared to equal 100.
10^2 = 100!
10 is your answer.
5. NO SOLUTIONS
6. INFINITE MANY
I'm really sorry if the pic is kinda confusing lol
the cut part is "subtract 3x both sides of the equation"