Which is equal to the expression below?
(x-3x)+(3x-5x)+(5x-7x)++(23x- 25x)

a.
-26x
b.
-24x
c.
24x
d.
26x

Aline passes through (1,-5) and(-3,7) write an equation for the line in point slope form rewrite the equation in slope intercept form

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.