Answer:
1.8 × 10^10
Step-by-step explanation:
(7.2 × 10 = 72)
(72) ÷ (4 × 10^-9) = 1.8 × 10^10
Answer:
-3x - 5
Step-by-step explanation:
Answer:
Step-by-step explanation:
Alex has 128 baseball cards, Leo has 66 cards, and ginny has 210.
Answer:
B
Step-by-step explanation:
Using the expansion
tan(x - y) =
, then
tan(x -
)
= 
note that tan( -
) = - tan(
) = - 
= 
=
→ B