Answer:
£13.75
Step-by-step explanation:
→ Call the charge x
x
→ Multiply by 16
16x
→ Equate to total
16x = 220
→ Divide both sides by 16
x = £13.75
0.1981
See attachment for calculation
2x²=-8
x²= 8/2
x²= 4
x= √4
x= 2
So, the value of x is 2