3 units
you have to use the distance formula to find the answer. it comes out as u have to square nine and nine squared is 3
n = a number
2n = twice a number
2n - 7 = seven less than twice a number
Sum means addition
negative 18 means -18
a number can be x
Sum of negative 18 and x should be 11
thus the equation is
Step-by-step explanation:
angle k equal to angle m ,,,