
Explanation:
Since we have given that
The prices of three t-shirts styles i.e $24, $30, $36 with their probability is given by

As we know that,


Now,

and

So,

So, the expected value of a t-shirt = $31.
Answer:
1/4 of a pie
Step-by-step explanation:
2 / 8 = 1/4
Answer:
18
Step-by-step explanation:
90% of 20 is 18
<span>Twice a number is equal to negative four :
2n = -4
answer
</span><span>2n = -4
last one is your answer</span>
Answer:
30 cups of flour
Step-by-step explanation:
3 x 8 = 24
3/4 x 8 = 24/4 = 6
24 + 6 = 30