Which of the following represents a function?
a.
x -11 -7 -1 -1
y 18 16 18 17

b.
x -11 -7 -1 -7
y 18 16 18 17

c.
x -11 -7 -11 5
y 18 18 24 17

d.
x -11 -7 -1 5
y 18 16 24 18

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

What number is 7 units left of -15?

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle