2.) What is the mean number of boys in the three classes? What is the mean number of girls in the three classes? 3.) What is the mode of the number of girls in the three classes?

4.) What is the median number of students in the three classes?

2.) Mean for boys: 13

Mean for girls: 14

3) No mode

4) 14

Step-by-step explanation:

2.) Finding mean for boys: 15+12+12 = 39

39/3 = 13

Finding mean for girls: 14+12+16 = 42

42/3 = 14

4.) 12, 14, 16

Median: 14 (middle number when put in ascending order)

answer: 100

step-by-step explanation:

1. 16.64

a^2+b^2=c^2

pr^2=pq^2+qr^2

pr^2=14^2+ 9^2

pr^2=196+81

pr= sqr root of 277

16.64

2. 11.31

c^2-a^2=b^2

18^2- 14^2=b^2

b^2=324-196

b=sqr root of 126

b=11.31

hope it ! (btw im in connections academy to, good luck! )