What is the domain of the first graph? second graph? third graph? explain each.

1. there are 300 members in mathwizards club, 2/3 of them are freshmen, 1/5 are sophomores and the rest are juniors. how many members of mathwizards club are juniors? ​a. 40b. 50c. 60d. 2602. if a fraction is divided by 1 ¼ and then subtracted from 2 ½ gives the result of 1 7/10, what is the value of the fraction? a. 1 b. 1 1/2 c. 1 3/4 d. 2 3. during holy week, ¼ of the office workers went out of town, 3/5 stayed at home while the rest, numbering 9, had to work overtime. how many total office workers are there? a. 60 b. 80 c. 90 d. 100 4. a freshmen class of 40 girls and 80 boys sponsored an acquaintance party. if 3/5 of the girls and 3/4 of the boys attended the party, how many freshmen attended the party? a. 60 b. 72 c. 84 d. 96 5. if the price of round trip fare to pagsanjan, laguna is php 315, how much will it cost a family of four if husband pays full fare, the wife pays 2/3 of full fare, and the two children each pay ½ the regular price? a. p945 b. p840 c. p787.50 d. p760 6. a cellphone costs php 12 250.75 and the price drops php 876.88 every month, what is the price of the cellphone after 3 months? a. p12,250.11 b. p11,373.87 c. p10,496.99 d. p9620.11 7. a number divided by 0.312 is 100. what is the number? a. 0.312 b. 3.120 c. 31.20 d. 312.0 8. jack is 52.12 kg and jill is 3.86 kg lighter than jack, what is the weight of jill? a. 55.98 b. 48.62 c. 48.26 d. 46.16 9. a utility worker earns p 8000.56 a month. if p 150.75 is deducted for gsis and p 87.50 for withholding tax, how much is his take-home pay? a. p7762.13 b. p7762.31 c. p7761.23 d. p7761.32 10. henry’s car odometer read, 7 654.7 km at the beginning of his trip. if it read, 8 581.03 km upon his return, how many kilometres did he cover? a. p929.30 b. p929.33 c. p926.33 d. p926.30

Given: a = (integers between 1 and 10)8 = (even numbers less than 25)c = odd numbers less that 10}find: 1.auc2. buc3. au(buc) =4.a-c5.b-a​

How do the doctors use percents in their career? ​