Is x^2 + y^2 = 5 a function

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%

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi

What is the value of the discrimination for the quadratic equation 0=×2+2+×2