86 Naira; divide 1075 by 12.5 (hopefully this is correct!)
Polygon A,B,C,D,E and polygon L,M,N.O.K
The average speed is given by:
average speed=(total distance)/(total time)
total time for the first 30 miles was:
time=distance/speed
=30/30
=1 hr
total time for the remaining 30 miles
=30/60
=0.5
hence the average speed will be:
speed=(30+30)/(1+0.5)=60/1.5=40 miles per hour
The point-slope form of the equation of a line is

where
is a point on the line, and

is the slope of the line.
We can use either one of the two given points as the point on the line.
We also need to find the slope. We can use the coordinates of the two given points to find the slope of the line.
The slope of the line that passes through points

and

is

Let's find the slope using (-3, 5) as point 1 and (-1, 4) as point 2.

Now we use the point-slope formula with point 1 and the slope we found just above.

For this case we must represent the following expression algebraically:
"eight more than the product of a number and two"
Let "x" be the variable that represents the unknown number
We have to:
the product of a number and two is represented as: 
Then, the full expression will be:

Thus, we use multiplication and addition.
ANswer:
Option C