Answer:
There are 9,999 positive whole numbers with 4 or less digits or less and one whole number which is neither positive nor negative.
This gives us 9,999+9,999+1 or 19,999 , whole numbers composed of 4 digits or less.
-4× = 16 answer: -4
Step-by-step explanation:
-4 × -4 = 16
since similar, then
EF/BC = DF/AC
EF = BC•DF/AC
= 18•10/12
= 15
I believe the answer is 8.2