Things to do to get high grades in highschool

Done things you could do to get goth grades in high school are taking notes, studying for tests, completing homework and schoolwork correctly and on time, and doing your best.

Hope this helps.

You can study and ask your teacher to understand something.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

a is the right answer