130 parents were asking about what support can they provide for their children to cope with the challenges in education do the covid-19 there are choices: internet connection strict monitoring and academic guidance, The result of the survey were as follows:

• 5 answered all the three

• 20 answered Internet Connection and Strict Monitoring

• 25 answered Internet Connection and Academic Guidance

• 15 answered Strict Monitoring and Academic Guidance

• 50 answered Academic Guidance

•70 answered Strict Monitoring

• 40 answered Internet Connection

a) how many parents did not answer of the three?
b) how many parents are served strict monitoring or academic guidance
c) how many answered internet connection strict monitoring but not academic guidance?]
d) how many answered exactly once the support only?
e) how many answered internet connection only?

pa sagot:(
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