Answer:
18.16
Step-by-step explanation:
Answer:
4
Step-by-step explanation:

Sum means to Add.
So the sum of d and 9 would be d + 9
Hey!
The sum of four times a number and -2
Let us take the number as ' x '
( 4x - 2 )
Six times a number and 3
( 6x + 3 )
The sum = ( 4x - 2 ) + ( 6x + 3 )
Hope helps!