Please help! Urgent! Will mark Brainliest!

Step-by-step explanation:

Since lines f and g are parallel, that means that the top angles will be the same, while the bottom angles will also be the same.

The angles of any quadrilaterals all add up to 360°, so we can create the equation like this:

Combine like terms so we can get a simpler equation:

Now let's solve for x!

So .

Hope this helped!

15

Step-by-step explanation:

3x + 6x + 45 = 180

9x = 135

x = 15

i dont know

step-by-step explanation:

umm. i dont know

the correct answer option is (2x-3)(2x+3).

step-by-step explanation:

we are given the following expression and we are to factorize it:

we are to find such factors that when multiplied they give a result of 36 (9 x 4 = 36) and when added they give a result of 0.

the two such factors of 36 are negative six and postive six.

factorizing the given expression to get:

therefore, the correct factorization of is (2x-3)(2x+3).