If a1 = 3 and an =5a n-1 then find the value of a5
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The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Solve the system of equations y= 3/2 - 1, -x+ y =-3

Find the percent cost of the total spent on each equipment $36, fees $158, transportation $59 a. 14%, 62%, 23% b. 15%, 60%, 35% c. 10%, 70%, 20% d. 11%, 62%, 27%