The answer is A. I hope I helped
4114.5 Balance method used
Ratio of A to B is 7:5...
so if there was 295 mL of compound B...
7 / 5 = a / 295
cross multiply
(5)(a) = (295)(7)
5a = 2065
a = 2065/5
a = 413 .... so 413 mL of compound A would be used
for a total solution of (295 + 413) = 708 mL solution <===
The sum is 15/10 in simplest form it's 3/2 and as a mixed number it's 1 1/2 (one and a half)
