Which of the following solution graphs represent a "UNION"

Step-by-step explanation:

B represents a union.  All numbers between -2.5 and 2 satisfy two different requirements:  x > -2.5 AND x < 2.

A represents an intersection  x < -2.5 OR x > 2

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5

the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.