Answer:

Step-by-step explanation:
Using the rule of exponents
×
=
, then
×
=
= 
I think the answer is 9
It's a smaller version of the other figure.
21/3=7
27/3=9
I’m not sure I only answer these for the points :)
Answer:
4% of all adults go to a health club at least twice a week
Step-by-step explanation:
- the proportion of adults who belong to health clubs is 10% that is 0.10
- the proportion of these adults (health club members) go to the club at least twice a week is 40%, that is 0.40.
Thus, the proportion of all adults go to a health club at least twice a week is
0.10 × 0.40 = 0.04, that is 4%
Answer:
r+1
Step-by-step explanation: