The answer or average is 15
Answer:

Step-by-step explanation:
.
The measure of angle GXI is 80
Answer:
105:175
Step-by-step explanation:
3+5 = 8
3/8 of 280 is 105.
5/8 of 280 is 175.
the ratio is 105:175
next we have to simplify it:
divide both sides by 5:
21:35 divide both sides by 7=
3:5
A ray is part of a line with a start point but no end point.
A decimal is a point followed by digits that show a value smaller than one