Answer:
first one and second one
Step-by-step explanation:
nothing change unless it said change by scale factor or something!!!
Answer:
A
Step-by-step explanation:
0 is sea lvl so just add and subsubtract
Answer:
a) 249 = 249 or 2.49 × 10²
b) - 100 = - (10)²
c) 10 + 7169 = 7179
Step-by-step explanation:
Answer:
$197,949.40
Step-by-step explanation:
Just took the quiz.