Answer:
i think $54.5
Step-by-step explanation:
i did 5 times 40 and 5 times .9
35 = 1/2h (6+1)
35 = 1/2 h + 7
28 = 1/2h
14 = 1h
14 = h
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40 is your answer. Because, you need the lowest multiple so we have to find it by making out a chart of their multiples
8, 16,24,32,40
10,20,30,40
The first same multiple they make is 40