Answer:
102 students
Step-by-step explanation:
Note that 65% and 71% are both 1 standard deviation from the mean (71%). According to the empirical rule, 68% of scores lie within 1 std. dev. of the mean.
68% of 150 students would be 0.68(150 students) = 102 students
30u^2v^3 and 8u^5v is : 2u^2v

+ 474 equals
483.
First, multiply 3 two (3x3) times to get 9. Your problem should look like: 9 + 474.
Second, add 9 + 474 to get 483, which is the correct answer.
2+x^3=18
x^3=18-2
x^3=16
x=2.52
I think the answer of the inequality is 5y+7 less than -3