Use PEMDAS
Parentheses
Exponents
Multiplication (L-R)
Division (L-R)
Addition (L-R)
Subtraction (L-R)
(30-9+3)+9
(21+3)+9
24+9
33
33 is your answer
Answer:
The answer is <u>9</u>
Step-by-step explanation:
picture attached
40 students
We do not count the counselors or the principal because they are not students, so we do 83 - 3 = 80, now it is just simple division, for every student there is a parent, so we divide 80 in half, 80 / 2 = 40 students :D
the probability for both is 1 in 10th chance
