I assume that the numbers are supposed to be written as 7.14 x 10^10 for December and 3.21 x 10^10. The total mail delivered is the sum of these two numbers.
(7.14 x 10^10) + (3.21 x 10^10) = 1.035 x 10^11
this one is kinda Hard ill do sum research and help
D: because if you take 9.50-7.50=2 you would get p=price or the price of the pen.
Hope I helped=)
Answer:
um what?
Step-by-step explanation:
