Answer:
38.5
Step-by-step explanation:
The formula for the area of the circle is 
.
Since you have the diameter and you're told to use 3.14 as pi, all you need to do is to substitute.
The diameter is also 2 times the size of the radius so you divide 7 by 2.
So 
Answer: 38.25
Step-by-step explanation: You divide the whole number by the denominator in the fraction.
153/4 = 38.25
2 ¾= 11/4 Fraction. greater than 1 is 5/4.So, two 5/4 fits in 11/4. So, answer is 2.
1) It takes him ac minutes to run his train(s) around the track.
a being the time it takes to move ONE train around the track,
c being the number of trains.
When he has 5 trains, it is just 5 times that, since they are both proportional.
5ac
2) A) EG corresponds with BD, since they are both the hypotenuse.
Answer:
(2, 7)
Step-by-step explanation:
you just look at the point where the two lines intersect.
