Which table represents a non-proportional situation?

x f(x)
–1 –3
0 0
1 3
4 12

x f(x)
–2 2
0 4
2 6
3 7

x f(x)
–1 –3
0 0
1 3
2 6

x f(x)
–1 2
0 0
1 –2
2 –4

Which value is not a solution of 8x^3 – 1 = 0

Math each whole number with a rational, exponential expression

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%