Since they’re outside corresponding angles you can just set the 2 equations up to each other and solve for x.
5x + 20 = 3x + 60
-3x -20
2x = 40
x=2
A Yes
B $15 per student
C 15:1
D 120×15= $1800.00
E $1425÷15= 95 students
Yes I got the third one too
Let us say that the number of pens that Matt has is x.
Therefore the number of pen that Sarah has is:
Sarah pens = (5/4) (1/3) x = (5/12) x
So the total number of pens they have is:
total = x + (5/12) x = (17/12) x
Hence the fraction of Matts pen is:
fraction = x / [(17/12) x]
fraction = 12/17
Given- 90% of runner completed the marathon.
out of which 30% are man.
To proof - let the total number of runner be y.
the men completed the marathon be 30% of the 90%.
thus we have
30% of 90% of y = 270
×
×y = 270
now solving the above equation
we get

Thus solving the equation
y = 1000
Thus the total runners of men who completed marathon be 1000.
Hence proved