Answer:
a 10d
Step-by-step explanation:
5d(7-3)- 16d+3*2d
Simplify what is inside the parenthesis first PEMDAS
5d(4) -16d +3*2d
Then we multiply and divide from left to right
5d(4) -16d +3*2d
20d -16d +3*2d
20d -16d+6d
Then we add and subtract from left to right
4d+6d
10d