Answer:
A=4 below where it already is
B=12 below where it already is
C=10 below where it already is
Step-by-step explanation:
The sum of a number.....means addition
ur expression would be : x + 21
It seems that you are looking for the yield of the shares of stocks after they were sold.
To solve,
yield =( current total amount- previous total amount) / previous amountwherecurrent amount = $9.9/share*700share+ $18previous=$9.29/share*700 share
yield=[ (9.9*700)+18] -(9.29*700)/(9.29*700) x 100
yield= 6.8%
Shares of stocks yield = 6.8%