Step-by-step explanation:
a. Twice a number increased by 5
Assuming the number as x
Therefore, It's 
b. Five decreased by twice a number
Assuming the number as x
Therefore, It's 
c. twice the difference of a number and five.
Assuming the number as x
Therefore, It's
d. Twice the sum of a number and five
Assuming the number as x
Therefore, It's 
e. five subtracted from twice a number
Assuming the number as x
Therefore, It's 
f. twice a number, less five
Assuming the number as x
Therefore, It's 
<h3>Hope it helps!!</h3>