Answer:A
Step-by-step explanation:campbella helped
Answer:
no
Step-by-step explanation:
we'll say x=5
5 does not equal 1/5
I think r is 1/2 but is not in the option
X in litres is 67% herbicide
y in litres is 46% herbicide
{x+y=42
{0.67x+0.46y=42*0.55
{67x+46y=2310
{46x+46y=1932
21x=378
x=18 litres
A. She need to use 18L