Is there any other point on the circumference of the circle that shares the y-coordinate of point a(x, y)? if so, what are the coordinates of that point?

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?