Rosanna bought 14 cds and 12 tapes for her party. She spent a total of $290. Each cd cost her $13.

Write an equation to figure out the cost of tapes

Solve for the cost of the tapes

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

What is the 12th term of b(n)=-4-2(n-1)

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.