Answer:
21
Step-by-step explanation:
count only the pair numbers between 200 and 240:
200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 238, 240
joint porbability formula
0.23*0.73*0.74 = 0.124246
72
9x8=72
check your answer by 72 divided by 9.
