B. 1 hour, he takes the exact amount of time that he types.
The equation of the line is given as

A straight line equation is given in the form

where

is the gradient and

is the y-interest.
We need to rearrange

to make

the subject.

⇒ from here we can read the gradient and the y-intercept. The gradient,

and

.
<span>A line that is parallel to

will have the same gradient,

but different y-intercept. One example of equation of a line that is parallel to

is

</span>
Answer:
C
Step-by-step explanation:
Hey There so the first step of this problem is to find the formula for circumference

given some of the values we can form an equation to solve for the radius (r)

so we can conclude that the radius is equal to 5