Step-by-step explanation:
Union = elements of A + elements of B
Union = ( 1,6,7,9,12)
Answer:

Step-by-step explanation:
The equation is

Solve for x
we know that

substitute

so

12%
40% = 0.4
30 = 0.3
0.3 x 0.4 = 0.12
0.12 = 12%
Answer:
that is the answer
Step-by-step explanation:
Answer:
Second option: Equation, because 8 plus the fish that Juan caught equals the fish that Erin caught
Step-by-step explanation:
You can for sure make an equation, all you need is to have variables and that's allowed in this case.
E=J+8
E=Erin J=Juan