Answer:
0.25q + 0.10d
Explanation:
We know that each quarter values 0.25 dollars, therefore the amount in dollars of q quarters would be 0.25q.
On the other hand, each dime has a value of 0.10 dollars, therefore the amount in dollars of d dimes would be 0.10d
If we have both quarters and dimes, we would need to sum up the previous two expressions: 0.25q + 0.10d would be the value in dollars of this.