Answer:
400 students, 1/8 are left handed
Step-by-step explanation:
A. is not a real number, or square root -3
Negative numbers do NOT have a square root because it is negative
since it is a quadrilateral, all the sides will add to 360. If two angles are 90, and one is 99, add them and subtract from 360. The last angle should be 81 degrees.
450 is 75% of 600 you can find this by divding 450 by 0.75