Answer:
Rita is left with approximately 
Step-by-step explanation:
Given:
Price for trousers= 
Price for shirt = 
Price for headscarf = 
Total Money she Spent = Price for trousers + Price for shirt + Price for headscarf = 
Total Money she had before = 
∴Total Money left = Total Money she had - Total Money she spent = 
Rounding to nearest whole number ≈ 
The conversion between Litres and gallons is about 4L/gal,
so 2L * 1gal/ 4L = 1/2 gal
The 1 gal is about twice as large
-1 is your answer, if that is what you want...
Step-by-step explanation:

I hope I'm correct. I've never learnt differentiation for log and exponents before