Answer:
the answer is a hope this helps you 4/5 because a proportional relationship. two quantities and it represented by a graph
<h3><u>A</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u><u>:</u><u>-</u></h3>
- Age of Amy's younger sister=1year
☆Amy is 9 years older than her younger sister.

Let after x years Amy will be 4times old as her sister.
ATQ

- Using cross multiplication







I was gonna answer but I’m not sure and I don’t want u to get it wrong so I’m just not gonna tell u sorry
Answer:
120
Step-by-step explanation: 10 x 12 = 120 m. Hope this helps