Answer:
It took him 12 hours
Step-by-step explanation:
480 / 40=12
A. x=34
2 x 17 = 34
34/2 = 17
<h3>
Answer: 17</h3>
Multiply the probability of getting a correct answer (0.25) with the number of questions (68) to get 0.25*68 = 17
The student should expect to get about 17 questions correct.
Answer:
$7.57
Step-by-step explanation:
$0.04 x 20 = 0.80
0.80 + 6.77 = 7.57
