Answer:
1=-1/5 2=11/20 3=149/25
Step-by-step explanation:
I get it you have to put the number into your calculator then turn it into a fraction
hop this helps
-mercury
In this case you would set it up as

(180 represents the degree of the triangle)
Add up like terms

Subtract 130 to the other side (180-130)

Divide 10 to the other side ( 50/10)
.

Hope this was clear :)
The answer is C
expand the equation then you will get 3-10x-5=9+3x, simplify you get 13x=-11
B. 3 to 5 & D. 7 to 12. because unchanging, in this case, means not moving.(or the flat lines)
The answer is its in the ones place