1.) If the measure of angle 2 is 117 degrees, what is the measure of angle 8? A) 117 degrees
B) 27 degrees
C) 145 degrees
D) 63 degrees

2.) What is the solution of the system of equations?
y= x - 10
y= 2x + 5

A) (15, 25)
B) (15, -25)
C) ( -15, -25)
D) ( -15, 25)

3.) What is the solution of the system of equations?
A) (3, -1)
B) ( -3,1)
C) ( -1,3)
D) (1, -3)

4.) Xavier(x) has $20 more than Sara (s). Their combined money totals $90. Which system of equations represents this situation?
A) x + s=90 s + x=20
B) x + s=90 x - s=20
C) x - s=90 s + s=20
D) s - x=90 x - s=20
PLEASE HELP

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step-by-step explanation:

should you really be posting this isn't math boi.

let's add {f(x)=x+1}f(x)=x+1 and {g(x)=2x}g(x)=2x together to make a new function.

f(x)+g(x) =(x+1)+(2x)=x+1+2x=3x+1

let's call this new function hh. so we have:

{h(x)}={f(x)}+{g(x)}{=3x+1}h(x)=f(x)+g(x)=3x+1

we can also evaluate combined functions for particular inputs. let's evaluate function hh above for x=2x=2. below are two ways of doing this.

method 1: substitute x=2x=2 into the combined function hh.

h(x)

h(2)

​    

=3x+1

=3(2)+1

=7

​ since h(x)=f(x)+g(x)h(x)=f(x)+g(x), we can also find h(2)h(2) by finding f(2) +g(2)f(2)+g(2).

first, let's find f(2)f(2):

f(x)

f(2)

​    

=x+1

=2+1

=3

​  

now, let's find g(2)g(2):

g(x)

g(2)

​    

=2x

=2⋅2

=4

​  

so f(2)+g(2)=3+4=\greend7f(2)+g(2)=3+4=7.

notice that substituting x =2x=2 directly into function hh and finding f(2) + g(2)f(2)+g(2) gave us the same answer!

5050

hope this !