Question

Can someone please help me I really don’t understand this

Answer 1

Answer:

Umm sorry i thought i knew it But my answer was wrong. I'm sorry and i hope you found the answer:)

Step-by-step explanation:

Answer 2

a.55=30x+50y
b.45=30x+50y
c.substitution
d.

55 and 45

I tried ! Hoped this helped ! Mark brainly if I helped!
Have a nice day!!!!!!!!!!!!!!!!