Answer:
Richard
Step-by-step explanation:
28 days=4 weeks
40 paintings in 4 weeks
45 paintings in 5 weeks
Richard weekly rate: 40/4=10 paintings per week
Nestor weekly rate: 45/5=9 paintings per week
If richard's rate is 10 while nestor's is 9, richard has a faster rate
First you subtract 7 minus 19 and 7/8b minus 5/4b:
5/4b+7=7/8b+19
-7/8b -7/8b
5/4b+7=7/8b+19
-7 -7
3/8b=12
Then you divide 12 by 3/8:
b=32
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