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What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.

Aband wants to create a cd of their last concert. to creat the cds, the cost will be $350 advertisement fee plus $3 per cd. write an inequality that represents how many cds they can buy with a maximum of $1225.solve the inequality

Given lm, find the measure of (award brainliest)