Step-by-step explanation:
option a is correct
and d too and
-4b⁴ one Is wrong and -5x³
It's less than fifty eight tenths
The answer should be C not sure djaidbskajabsbd
We will use the binomial coefficient formula to work out the answer
The formula is given by:

Where:
'n' is the total population or sample population
'r' is the number of pick
We have:
n = 20
r = 3
Substitute these values into the formula we have

Answer:
There are 1140 different ways of picking three winners out of 20 people