4 packages, because 24/12=2, 8/2=4 packages.
Answer:

Step-by-step explanation:
Given:
S = 52.5°
s = QR = 7
Q = 80°
q = RS = ?
Required:
Equation that could be used to find the length of RS
Solution:
We would need the law of Sines which is given as:

Applying the Law of Sines, we would have the following equation:

Plug in the values

Therefore, the equation that can be used to determine the length of RS is 
Substitute each value until the answer is correct
a. 1 = -4 x -5 -1
1 does not equal 19
b. 15 = -4 x 4 -1
15 does not equal -17
c. -5 = -4 x 1 -1
-5 equals -5
just to make sure the last answer is incorrect
d. -7 = -4 x 2 -1
-7 does not equal -9
Answer:
Step-by-step explanation:
it is increasing in ![]-\infty;3/2]](https://tex.z-dn.net/?f=%5D-%5Cinfty%3B3%2F2%5D)
because this is like

where a > 0
and -b/a=3/2