Answer:
3 dollars 90 cents
Step-by-step explanation:
20 - 11.70 = 8.30
8.30 - 4.40 = 3.90
2z+16=124
124-16=108
108/2=54
we need to find the equation in the form y=mx+b, so:
4x+y=5
y=-4x+5
the "4x" go subtracting to the other side
and we have m=-4 and b=5
so the answer is: y=-4x+5
