Answer:
y=4/5x
Step-by-step explanation:
y=mx+b
plug in y and x into each equation and solve!
4=5m+b
8=10m+b
4=5m
m=4/5
b=0
y=4/5x+0
Answer: 320,340,360,380,400,420,440
3950÷5=790 (790×5=3950)
1914÷6=319 (319×6=1914)
give a try for next sums
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