In a class 30 of students, 14 have a brother and 13 have a sister. There are 14 students
who do not have any siblings. What is the probability that a student chosen randomly
from the class has a sibling?

step-by-step explanation:

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5

you can use a^2+ b^2=c^2