21 square units.
The formula for the area of a parallelogram is base x height.
the height provided is 7, perpendicular to the base which is 3
3 * 7 = 21.
Step-by-step explanation:
(ax + b)² = a²x² + 2abx + b²
In this case, a = 1, so:
14 = 2b
b = 7
(x + 7)² = x² + 14x + 49
24.3
bcoz to round to tenths place need to chk with hundreths place.
As 1 is in hudredths place so the digit in tenths place remains the same
Lollopollolollllllololllllolllllllllllllll
You can cross multiply for this problem. So:

So K=35!
Hope this helps! :)