How many rows does the resultant of the relational algebra expression acqcost>1500 (desc,acqcost (A)) have, given the table A below? desc id 82943 Conference Table 77463 Conference Chair 99821 Desk 44320 Desk 99873 Conference Chair 77472 Conference Chair 88872 Speaker Phone 33411 Monitor 55" 98006 Printer 88753 Copier 72633 Chair 99098 Conference Chair acqcost 4998.00 247.45 1987.00 1987.00 247.45 247.45 247.00 874.00 1389.00 4877.90 642.00 239.90 dateacq 2019-09-15 2019-09-15 2019-09-15 2017-11-05 2019-09-15 2019-09-15 2020-06-23 2018-03-08 2019-12-18 2017-12-01 2017-11-05 2020-02-10

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Multiple Table

In a database, a table is used to store data in the form of rows and columns. Rows are aligned horizontally and identified by one or more values in a specific column. Columns are vertically aligned and identified by a unique column name.