Answer:
The length of EF = x = 18 cm
Option A is correct.
Step-by-step explanation:
Ware given perimeter of triangle = 97 cm
We need to find length of EF = x = ?
The length of EG = x+7
The length of EF = x
The length of GF = 3x
The formula used is: 
Putting values and finding x i.e length of EF

So, value of x=18 cm
The length of EF = x = 18 cm
Option A is correct.
Answer:
there will be 19 $100 bills
and 11 $10 bills
Step-by-step explanation:

Answer:
50,000 square inches
Step-by-step explanation:
1:5 ratio so 250,000/5=50,000
Two planes intersect at a line. Not a point.