General Idea:
The definite integral of a function f(x) from a to b is given below:

Here geometrically, the value of integral A is the area under the curve f(x) from x = a to x = b
Answer:
The expected value of a fair game should be >0
Thus the answer is (c)
Answer:
D 4,020
Step-by-step explanation:
$37,000(.06) = $2,220
$2,220 + $1,800 = $4,020
have a good day!!
Answer:
Square (top right), rectangle (middle bottom), and trapezoid (bottom right)
Step-by-step explanation:
The only one I'm not to sure about is the trapezoid, but you can rule out all the others because there is no right angle. Hope this helps!