56.8 * 7 = 397.6
He travel 397.6 miles in all.
Answer:
a)30-1,2,3,5,6,10,15,30
b)20-1,2,4,5,10,20
Step-by-step explanation:
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See the attached picture:
-162
23=5-2/3d
2/3d=-18
d= -27
6d= 6* -27
6d= -162
112
Everything is multiplied by 8