Answer:
b
Step-by-step explanation:
We have such system of eq

First lets solve second eq
7x=21 /:7 divide both sides by 7
x=3
Now we can substitute it to first equation
9x-2y=19
9*3-2y=19
27-2y=19 /-27 subtract 27 both sides
-2y=-8 /:(-2) divide both sides by -2
y=4 - its the answer
Answer:
answer is -8.4 if you add 3.6 and two it's 5.6 times 1.5 it will be -8.4