Answer:
The error is: The solution shows the Sam's age and the problem asked for Micaela's age.
Solution fixed: 
Micaela is 17 years old now.
Step-by-step explanation:
The error is: The solution shows the Sam's age and the problem asked for Micaela's age.
To fix the error, you can set up these equations based on the information given:
Solve for "s" from the first equation:
Substitute this equation into the second equation:
Now you need to solve for "m":
Micaela is 17 years old now.
So one way is to have a number close to 7
14.00000000000000000000001/2
21.00000000000000000001/3
28.000001/4
etc
Y-intercept: Let x = 0. Result: 5x=0, and x= 0. y-intercept is (0,0).
Similarly, x-int. is (0,0) (after going thru the same procedure: set y=0 and find x)
5 bags is cheaper because one bag is $3 and 5 bags for ten so to find the unit price the amount (10/ ) the amount of bags (5) so therefore 10/5= $2 which is smaller than the price of an individual bag
We can find the value of PT from given information
PT = 4x - 6 and TQ = 3x + 4
if PT = TQ
4x - 6 = 3x + 4
4x - 3x = 4 + 6
x = 10
now put the value of x into PT = 4x - 6
PT = 4 (10) - 6
=40 - 6
PT = 34
The value of PT = 34
