Answer:
187*
Step-by-step explanation:
167 plus 20 is 187
hope this helps
I think the first box is perpendicular good luck
Answer:
c
Step-by-step explanation:
I believe it would be B observational sampling
Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30.
Factors of 70: 1, 2, 5, 7, 10, 14, 35, 70
factorization of 45 is 5 x 3 x 3, or 5 x 3^2.