He can only pick 7 different groups because 2 times 7 is 14, and there are 15 people in all.
Hope this helps. c:
The answer would be c because it means Multiply and whenever a variable is next to a number in this case 39s then that means it a multiplication
So C. 39s
7 + 2x = 51
hope this helps
Answer:96.97
Step-by-step explanation:
Given
mean height of women 
Standard deviation of height 
mean height of men 
Standard deviation of height 
P
P
P
i.e. 0.9697=96.97 %
The product of 12 and -5 is -5(12) = -60. Note that 12(-5) = -60 also.