Find the common difference of the arithmetic sequence.

2,1 8/9, 1 7/9, 1 2/3,

a. -1/9
b. 1/9
c. 9
d. -9

for your

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.