Please help me solve x and z

Step-by-step explanation:

First we can solve for x,

107 and 10x+3 is  straight line which is 180 so make an equation:

10(7) + 3 = 73

{CHECK: 107 + 10(7) + 3 = 180}

Now, let's find the value of z

As we have the value of x it will be easy to find z by forming an equation:

{CHECK: 107 + 73 = 180}

hope this helps :)

i would say c is the best answer, hope it's right!

good luck! =)

cutie~