Which of the following indicate a quadratic equation?  Select all that apply.

Georgia bought a packge of of 14 dollies to use in her valentines.she used 5/7 of the package to make her in valentines. how many dollies did she have left

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

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%