Answer:
Step-by-step explanation:
According to the first expression:
2(10-k): where,
2:shows the double amount of money which ELI has
10:shows the amount of money which ELI had at the starting.
k:shows the amount of money which is lost.
10-k:shows the amount of money which ELI has after losing some amount.
According to the second expression:
20-2k where,
20:shows the twice of initial amount.
k: is the amount of money which is lost
2k:s hows the twice of amount which is lost
20-2k: shows the amount of money which is left with ELI after his mom gave him some money....
Answer:
Part a)
Steve's expression is
For x=3, the expression is equal to 
Part b)
Jasmine's expression is

For x=2, the expression is equal to 
Step-by-step explanation:
Part a)
Let
n-----> the first term
The expression is


substitute
Steve's expression is

Evaluate for x=3

Part b)
Let
n-----> the first term
Jasmine's expression is

Evaluate for x=2

Part a: you would get 3x+4=22
Part b: you would get 6 as your answer
SA = LH + LW + WH + 2(1/2LH)
SA = 4*2 + 5*2 + 3*2 + 2*1/2*4*3
SA = 8 + 10 + 6 + 12
SA = 36
X=-3/2 plus or minus to the square root 109/2