. 26. Given the following ratio relationships: S/A=7.6 N/S= .08 D/A=.55 A=D+E What is N/A? (record your answer to a percent, rounded to I decimal place) 27. Suppose A-D=E, that N = 21,000, E/A=.75 and N/E = 40. Compute D/A (record your answer to a percent, rounded to 1 decimal place). 28. Assume that S/A=2.5, D/A = .15, N/E= .75 and A=D+E. Solve for N/S (record your answer to a percent, rounded to 1 decimal place). 29. Given the following equations: 4 - 4x-y=12 8x + 7y + 11 = 35 Solve for y 30. Referring back to the prior problem, what is x