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Reading two-way frequency tables

Researchers surveyed recent graduates of two different universities about their income. The following two-way table displays data for the sample of graduates who responded to the survey.
How many graduates from University A had an income under $20,000?\$20\text{,}000?
graduates
IncomeUniversity AUniversity B
Under $20,000\$20\text{,}00035354040
$20,000\$20\text{,}000 to $39,999\$39\text{,}99990906363
$40,000\$40\text{,}000 and over35353737