Answer:
1/12
Step-by-step explanation:
you need to make sure that they have a common denominator before doing anything.
Find the lowest common multiple (lcm), which would be 12 (3 x 4 = 12)
So then, put 12 as both denominators, and subtract.
7/12 - 9/12 is equal to 28/12 - 27/12, because 3 miltiplied by 4 equals 12, therefore you mutiply the 7 by the 4, and 4 miltiplied by 3 equals 12, therefore you multiply the 9 by the 3.
Sorry if this is confusing, i tried explaining as best i could! Hope this helped!
Answer:
approx. $1.85 or $1.86 each marker
If 2 parallel lines are cut by a transversal, then the alternate exterior angles are congruent. If 2 parallel lines are cut by a transversal, then the same side interior angles are supplementary. A line that intersects 2 coplanar lines at 2 different points.
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
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