TO get the decimal 8 is obviously 8.0 and for 21/40 just divide 40 for both the numerator and denominator. Then add the 8.0 with the answer you get for 40 together to get the final answer.
Answer: D
Step-by-step explanation:
D a kilogram is 100000 bigger
Let the number of cookies David has = c
Number of cookies given to Jeff = 8
So cookies left with David = c-8
David splits the cookies in half with Tod. So cookies left with David are =

Same number of cookies are with Tod = 
He finds the number of cookies that Tod has is 1/2 the difference of C and 8. Write an expression to represent the number of cookies that Tod has.
Hence, number of cookies with Tod are= 
Answer:
Step-by-step explanation: