Step-by-step explanation:
1:
(6×10)+(9×10)
(60)+(90)=
15
2:
(7×1)+(3×10)
(7)+(30)=
37
3:
(8.8×100)+(3×100)
(880)+(300)=
1180
Answer:
He paid $6.54 for each ball
y= 5-8x
See image below:)
