You would have to put 4.99 times 20 which will cost 99.80 for 20 gallons.
Answer:
x= -1, x=1 and x=2
Step-by-step explanation:
The equation is;

Using a graph tool to graph the equation and identify the solution you will have;
x= -1,
x=1
x=2
Check answers
when x=2

Whats figures? Are you talkin bout
Answer:
4
Step-by-step explanation:
Use PEMDAS. Use a calulator to solve 3 and 1/3 times 1.9+19.5 divided by 4 and 1/2 and after you solve that solve 62/75- 0.16. Divided the first answer by the second. Now move to 3.5+4 and 2/3+ 2 and 2/15 then solve. Next solve 0.5 times ( 1 and 1/20+ 4.1) and with the answer you got from the equation above divided that by the answer just solved. Now divided the number on the left with the number on the right and you should get 4.
Answer:
(a) 0.023%
Step-by-step explanation:
Fill in the given number and do the arithmetic.
A(12) = 0.23·12·e^(-0.4·12) ≈ 0.0227 ≈ 0.023
The percentage of alcohol in the blood 12 hours after the drink is about 0.023.