Answer:
5/24 or 20.8%
Step-by-step explanation:
Probability that the 7th grader is a boy = number of boys/(total kids) = 4/(4+4) = 1/2
Probability that the 8th grader is a boy = 5/(5+7) = 5/12
Probability that both are boys = 1/2*(5/12) = 5/24 or 20.8%
2x(x+4)-1(x+4)
2x^2+8x-x-4
2x^2+7x-4
Reflection across the y-axis
Answer:
i don't know sorry im just answering so i could ask question