Answer:
Correct choice is B
Step-by-step explanation:
Let x% be your final test score, then the average of all test scores is

Since you must have an average between 80% and 89%, then

X is measured in percent, then the greatest value of x can be 100%. You get that

Answer:
80 miles per hour
Step-by-step explanation:
we know that
if the line segment KL is tangent to circle J at point K
then
KL is perpendicular to KJ
the triangle KJL is a right triangle
Applying the Pythagorean Theorem

we have

substitute the values

therefore
<u>the answer is the option B</u>
