The answer is 5 problems a student.
Answer:5) c= 25.12 cm
6) c= 282.6 m
7) c= 13.188 mi
8) c= 6.28 cm
Step-by-step explanation:
C= 2 x pi x r
Circumference = 2 x 3.14 x radius ( radius is half the diameter of the circle)
<h2>
Answer:</h2>
Correct option: B
<h2>
Step-by-step explanation:</h2>
When we say a is no more than b, we express this in a mathematical language as follows:

In this inequality, we know that the area of the triangle is no more than 168 in². In other words, if the area is named
, then:

We also know that the height of a triangle is 4 inches greater than twice its base. Translating this in a mathematical language:

From geometry, we know that the area of a triangle is given by:

Matching (1), (2) and (3):

Since the length of the base of the triangle is
, then 

Finally, correct option is B.
The is the answer: 8(50+2)
I think the answer would be 180
5*2=10 90*2=180