Okay, it's wrong because they forgot to do -2 times 3x.
The correct answer is

-2x-8
Hope i got is correct!
Answer:
You can expect at least 9 of her postcards to arrive within a week
To find that, we multiply the number of postcards by the probability
15 x 0.62 = 9.3
Hope this helps
Good Luck
Answer:
40
Step-by-step explanation:
6x7-8/4 =42 - 2 = 40
Answer:
14
Step-by-step explanation:
a = 3
b = 4
