Answer:
You can buy 12 gallons of gas.
Step-by-step explanation:
I took 40 and 3.25, then divided them.
I got a very large ugly decimal. When simplified it is 12.
It's 
which gives 5.23 times increase in 10 years, so 523% of oryginal price
Answer:
To multiply decimals, first multiply as if there is no decimal. Next, count the number of digits after the decimal in each factor. Finally, put the same number of digits behind the decimal in the product.
The answer would be 5.
When adding a negative to a positive, it's the same thing as subtracting.
F(x) = (√ x +6) +8
f(x-1) = (√ x-1 +6) -8
=(√x+5) -8
