20. 60% of the 110 students enrolled in a class earned passing rd. 1/2, 7/62, 5/13, 2/13 27. The ratio of substance A to substanc of substance A, how much is there of a. 4 b. 10 C. 8 d. 14 elos 28. If 80 is decreased by 25%, the results equals a. 60 b. 45 c. 50 d. 25 29. The following temperatures were recorded 100 What is the average of th r30. What percentage of 1300 is 39002 a. 35% b. 150% c. 80% d. 300%