Step-by-step explanation:
The first expression is :

Numerator = -11×2 = -22
Denominator = 3
So, answer will be :
(negative)
The second expression is:

Numerator = -11×-2 = 22
Denominator = 3
So, the answer will be :
(positive)
Hence, this is the required solution.
Answer:
Step-by-step explanation:
Reduce the ratio to lowest terms, then multiply numerator and denominator by any same value to get another equivalent.

Subtract 28 from 49 which is 21 picked in the second hour
Answer:
$156 for 4 g
I did not rally understand how you worded your question so sorry if I got it wrong! <3
Step-by-step explanation:
$156 for 4 g =
$156 / 4 = $39 dollars for 1 g
$280 for 7 g =
$280/7 = $40 dollars for 1 g
=) sorry. but i do not know this. i hope somebody helps you out> =)