Is square 289 a integer

What situation is an example of an observational study

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Pleting the square f the given find the x-intercepts of the parabola with vertex (-5,13) and y-intercept (0, 12). write your answer in this form: (14,.99). if necessary, round to the nearest hundredth. *- h enter the correct answer, de verter, and ametry 00000 done doo