Answer:
I need helpp
Step-by-step explanation:
Peeople looking at this please check mine at unanswered im at desperte helpp!!!!
mine is just above this on unanswered<3 smluv
The area of the trapeziod is 337.5
<span>Unless you have some other choices, I'd have to say Stratification, to make sure the groups are representative and heterogeneous.
I hope I helped.</span>
2^3
the third choice is correct