Idk sry I wish I did know but I don’t
Answer:
Error: 1 −4.5 + 4.2 + 5.6 + (−7.3) Additive inverse
Step-by-step explanation:
Correction: no need to subtract from one

Answer:
20, 11
Step-by-step explanation:
x=first Number
x-9=second number
above two added together=31 or
x+(x-9)=31
2x=40
x=20 first number
x-9=second number
20-9=11 second number
20 (first number) + 11 (second number)=31
31=31
Answer: $52.71
Step-by-step explanation:
Today's price= $58.63
Yesterday's price= y
Difference= $5.92
y+5.92 = 58.63
y = 58.63 - 5.92
= $52.71