First, u need to add 6,728 and 5,843 together which is 12,571 then u need to find the nearest hundred which is the 5 hope that helped!
Answer:
Step-by-step explanation:

9514 1404 393
Answer:
C) -1 +21i
Step-by-step explanation:
For many purposes, "i" can be treated as though it is a variable. Collect terms in the usual way.
(-2 +12i) -(-1 -9i) . . . . given
= -2 +12i +1 +9i . . . . use the distributive property to eliminate parentheses
= (-2+1) +(12i +9i) . . . group like terms
= -1 +21i
Answer:
90
Step-by-step explanation:
2(3^2)(5)
2(9)(5)
90
The multiples are 3, 6, and 9 3/10 so the answer is c 3/10