Answer:
26
Step-by-step explanation:
Step 1 : 8 + 2 × 
Step 2 : 3 × 3 = 9
Step 3 : 8 + 2 × 9
Step 4 : 8 + 18
Step 5 : 26
Hope I helped. =D
There are 7 pairs per poster and u have 8 posters so, I think u should do 7 times 8 and u get 56 so its B.56
Answer: Variance = 0.858
Step-by-step explanation: The variance formulae for a probability distribution is given below as
Variance = √npq
Where n = number of times experiment was performed = 9
p = probability of success = 0.09
q = probability of failure = 1 - p = 1 - 0.09 =0.91
Variance = √9×0.09×0.91
Variance = √0.7371
Variance = 0.858
Answer:252
Step-by-step explanation:420x60/100
