Harry's number is 0.04, and Terry's number is 4.
Hope this helps!
Equation of a straight line is normally in the form: y = mx + c.
Where, m and c are constants in which;
m = gradient
c = y-intercept.
Comparing this standard way way of writing the equation of a straight line with the current scenario, this equation can be rewritten as;
y = b1x + b0.
This way, b1 = gradient of the line while b0 = y-intercept.
Value of the expression will be 7
<u><em>Explanation</em></u>
Given value of the variables are :
and 
Given expression: 
So, <u>plugging the values</u> of
and
into the above expression, we will get...

So, the value of the expression will be 7.
For the last one is the pi sign and 2.333
6^8 = 1679616 that is the answer sir