Answer:
Jane gave 132 parcels to Mo.
Step-by-step explanation:
Given total number of parcels both Jane and Mo have = 528.
Let the number of parcels having Jane and Mo be x and y respectively.
Now let the number of parcels Jane gives to Mo be z.
So the number of parcels Jane give to Mo is 132.
Equation 1 : x + y + z = 3.25
equation 2 : 12x + 2y + z = 9.50
equation 3 : 2x + 4y + 5z = ??
u would multiply equation 1 by -12.....take that result and add it to equation 2....this eliminates x.
u would multiply equation 3 by -6...take that result and add it to equation 2....this eliminates x
Formula for sufrace area of rectangular prisms: S= 2 (lw + lh + wh)
for the first prism, x=14, plug 14 into 2(x)--> 2(14)=28
7,8,28
S= 2 [7(8)+7(28)+8(28)]
S= 2 (28+196+224)
S= 2(448)
S= 896
for the second prism, x is just 14
7,8,14
S= 2 [7(8)+7(14)+8(14)]
S= 2 (28+98+112)
S= 2(238)
S= 476
Add the two sufrace areas we found and the answer will be
D) S= 1,372
So for this our goal is to isolate t since its the total price. All you have to do is add yz on both sides of the equation, and your answer should be 
The answer is X= -6 , -8 I believe
