Answer:
Step-by-step explanation:

Answer: (a) x + 2y = -1 and 3x + y = 1
<u>Step-by-step explanation:</u>
I am not sure what the purpose was for the colored lines but I included them on the graph (below).
Step-by-step explanation:
I think that is the right answer I hope ut helps
Daniela invested a total of $50,00, some in a certificate of deposit (cd) and the reminder in bonds. The amount invested in bonds was $5000 more than twice the amount she put into cd. How much did she invest in each account ?
40 ÷ 2.40= 16.66
the teacher can buy 16 cookies