Subtract 13 from both sides.
-13
-7 = -20
-2x = -20
Divide by 2 on both sides.
Remember: Negative divided by a negative makes a positive.
-2/-2 = 1
-20/-2 = 10
Your answer:
x = 10
Just find the average and whatever is more than like say 5 away is an out lier
Answer: $32.81 , rounded would be 32.80
Step-by-step explanation:
Divide 420 by 32
then u multiply that by 2.50