Answer:
-8i + 12
Step-by-step explanation:
-4i(2 + 3i) = -8i -
= -8i - 12 * (-1) = -8i + 12
There would be 1,320 different ways, just multiply all the possible front runners 12 second runners 11 and third runners 10, 12x11x10=1,320
Answer:
x(1.05)+4.00
Step-by-step explanation:
He bought x pens for 1.05 each and you have to add the $4 shipping fee to it
Hope this Helps
We have,

Introduce variable
such that 
The sum
is therefore 
So,
(sadia's age)
(father's age)
Hope this helps :)