Answer:
-24
Step-by-step explanation:
Coefficient is the number used to multiply a variable, so -24 is the coefficient and x^7y^3 are the variables.
First, find out c
4c=-12, so c=-3
-5c=d, so d=15
Amount of walnuts=
Amount of almonds=
Amount of pecans=
Total amount=
LCM is 4 so sum is =
=
As given, Carmela divides the mixed nuts into 3/10 kilogram bags so number of bags will be:

=
= 5
Hence, answer is 5 bags.
Answer:
D. 
Step-by-step explanation:
Firstly, we know it's close to 6.75, so we can compute 6.75*6.75 and the product should be close to whatever's under the
. 6.75*6.75 = 45.5625, so we can already answer.
We could also figure out why other answers are bad.
