7 gallons of pure acid and 14 gallons of 10% acid
The answer is Hundredths place
4(m + 2) expanded is 4 x m and 4 x 2
simplified: 4m + 8
-1 1/4 as a decimal would be -1.25.
Since -1 is a whole number we would just write that as -1. 1/4 as a decimal is .25.