Answer:
20.8333...
Step-by-step explanation:
1 1/4=5/4
(5/4)/3=x/50
cross product
3*x=(5/4)(50)
3x=250/4
3x=62.5
x=62.5/3
x=20.8333...
-5y = -5 = 1
7x + 6y = 7
=-1.167
your answer is B) no