Answer:
190/570
Step-by-step explanation:
190/570
Jenny is incorrect in her calculation.
For every time that Jenny's brother washed dishes, Jenny washed dishes 4 times. This tells that the the times they washed dishes occur in the ratio 4 :1. If Jenny's brother washed dishes 8 times, Jenny has to have washed dishes
times. The way Jenny's is doing the calculation implies that his brother washed dishes
times. He calculation yields a wrong result.
Please be specific, how many people are in her class?
Idk exactly what your question is asking, but I think you are doing genetics? If you are then you are talking about a punnet square. All four boxes should be heterozygous(Cc). Hope this helps.