Volume- LxWxH
30x10x50= 15000
get a common denominator which is 24
3 7/8 = 3 21/24
6 /4 = 6 6 /24
3 21/24 - 6 6 /24
big number minus small number take sign of larger
6 6/24
- 3 21/24
-------------
5 30/24
3 21/24
--------------
2 9/24
2 3/8
the sign of the larger is negative
-2 3/8
F(x) = x^2 - 3x - 7
f(-3) = (-3)^ 2 - 3(-3) - 7
f(-3) = 9 + 9 - 7
f(-3) = 18 - 7
f(-3) = 11
Answer: 
Step-by-step explanation:
The complete question is provided in the attachment.
Given, Amount blueberry jelly beans=
pounds
pounds.
Amount lemon jelly beans =
pounds
pounds
Total jelly beans she bought = Amount blueberry jelly beans + Amount lemon jelly beans
pounds

Amount of jelly beans she gave away = 
Amount of jelly beans she has left= Total jelly beans - Amount of jelly beans she gave away
=
She has left
of jelly beans.