Does y= 3x^2 - 4x have a minimum or a maximum

Marie drew the triangle shown. she wants to draw a second triangle that is different from this one. use the drop-down menus below to complete the statements about the second triangle.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog