Identify the parts of the expression using mathematical terms. 8 + 7

Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?