Help someone please? And makes sure the answer is right please and thank you :)

x=7

Step-by-step explanation:

In this question, since  the horizontal lines are parallel lines, these two angles are congruent to each other.

So we have: 105=16x-7

Equation: 105=16x-7

Add 7 to both sides: 112=16x

Divide by 16 on both sides: x=7

Let me know if this helps!

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.