120 IS THE CORRECT ANSWER. BUT THIS IS NOT FOR SURE!
1/2 (Base x height) = area
1/2 (4*x)=10
2x=10
X=5
The height is 5 units
Ratio and proportion
x/300=67/100
cross multiply
100x= 20100
x= 201 students
hope this helps
Assuming that c is the length of AB (as is usually the case in the angle-side notation for triangles):
If sin(35) = 12/c, we can transform by multiplying both sides by c, and dividing both by sin(35) to get
c = 12/sin(35)
Evaluating using a calculator gives 20.92 units.