Answer:
50
Step-by-step explanation:
The function is Count.
There are many functions available on a database to do aggregated calculations. So they can be referred as aggregate functions. The aggregate functions available are:
- count: To get the the number of rows with a specified criteria.
- sum: To get the sum of values on the selected cells.
- max: To get the maximum value within a selected range of data.
- min: To get the minimum value within a selected range of data.
- avg: To get the average of the selected data.
As the field name referred here is 'lastname', the appropriate aggregate function would be count.
Learn more about count at brainly.com/question/15485178
#SPJ4
Answer:
15.6.
Step-by-step explanation:
5-44• (-0.75) - 18 ÷ 2/3 • 0.8 + (-4/5)
= 5 + 33 - 27*0.8 - 0.8
= 5 + 33 -21.6 - 0.8
= 15.6.
There are about 12% more cow than chickens
40% - 28%