Answer:
(A) 
Step-by-step explanation:
Slope intercept form of equation of line is 
The standard form of equation is 
Now let 
substituting the value of A and B in slope intercept form,

Ufididififiididid and fjfjdjdkdkdkidod and yeah
The measure of angles are 137.5 degrees and 42.5 degrees
Solution:
Given that two angles are supplementary
Let "a" be the one of supplementary angle
Let "b" be the other supplementary angle
Given that measure of one angle is 10 degree more than three times the other
measure of one angle = 10 + three times the other angle
a = 10 + 3b ---- eqn 1
We know that,
Two Angles are Supplementary when they add up to 180 degrees.
a + b = 180 ---- eqn 2
<em><u>Let us solve eqn 1 and eqn 2 to find values of "a" and "b"</u></em>
Substitute eqn 1 in eqn 2
10 + 3b + b = 180
10 + 4b = 180
4b = 170
<h3>b = 42.5</h3>
From eqn 1,
a = 10 + 3(42.5)
a = 10 + 127.5 = 137.5
<h3>a = 137.5</h3>
Thus the measure of angles are 137.5 degrees and 42.5 degrees
Answer:
They are on opposite sides of the river ( the riddle never said that they were on the same side )
One simply uses the boat to cross the river and the other person gets into the boat and takes it back to where it started.
Step-by-step explanation: