Answer:
Emily because Lindsay is at the movies so she can't ride the Ferris Wheel. Janelle is too afraid to go that high. Emily only doesn't like caramel apples so she can still go on the Ferris Wheel.
You need to isolate the variable (x) by performing the opposite operation.
Since 3 is multiplied by x, the opposite would be dividing by 3. What you do on one side you do on the other side, so you would need to divide -12 by 3 as well.
In your case, the answer is B
The number of boys . . . . . B
Twice the number of boys . . . 2B
4 more than twice the number of boys . . . 2B+4
You said that the number of girls is equal to that, so . . . G = 2B+4
But you also told us what G is: 16 = 2B+4
Subtract 4 from each side: 12 = 2B
Divide each side by 2 : 6 = B
There you have it. There are 6 boys in the club.
Turn 2/4 into 4/8
Because you cant halve the 5 in 5/8
The missing side length, n equals 7.