The conditional relative frequency table was generated
using data that compared a student's grade level and
whether or not they are involved in after-school activities.
Given that a student is in 10th grade, what is the probability
that the student is also not involved in after-school
activities?
Total
After-School
Activities
0.43
0.45
O
After-School
Activities
0.57
0.45
0.51
10th Grade
11th Grade
Total
0.55
0.43
0.55
0.49
5

Can someone me with this problem i don't understand i need

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

Which of these side lengths could form a triangle a) 2 cm , 2 cm , 4 cm b) 3 cm , 5 cm , 10 cm c) 3 cm , 4 cm , 5 cm d) 4 cm , 8 cm , 15 cm