Answer:
28.5
Step-by-step explanation:
i think itś 28.5 because 285 is after an increase of 10% which would mean 28.5 was the increase
Red to yellow.......7:3....added = 10
so 7/10 of the total students wore red and 3/10 of the total students wore yellow
and there are 300 total students...
7/10(300) = 2100/10 = 210 wore red
3/10(300) = 900/10 = 90 wore yellow
how many more wore red.....(210 - 90) = 120 more students wore red then yellow
By using exponent, it can be verified that
in standard form is 
What are exponent?
Exponent tells us how many times a number is multiplied by itself.
For example : In 
Here, 2 is multiplied by itself 4 times.
If 
(m times), a is the base and m is the index.
The laws of index are
The given exponent is
To learn more about exponent, refer to the link:
brainly.com/question/11975096
#SPJ1
Number 21 would be 6 39/40
Theoretical probability is data from our experiment , Experimental is our prediction
