Respuesta :
Answer:
D 15x
Step-by-step explanation:
because you add 10+5 which is 15 and it still needs to be multiplied by x so the result is 15x and what ever x is is what it would be multiplied by

Answer:
D 15x
Step-by-step explanation:
because you add 10+5 which is 15 and it still needs to be multiplied by x so the result is 15x and what ever x is is what it would be multiplied by