What is the standard deviation of the data set? 5,9,11,4,8,9,12

2.7
2.9
3.0
8.2

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Put the equation in slope intercept form by solving for y

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.