Respuesta :

Answer:

20

Step-by-step explanation:

1+3(-4+9)

1+3(5)

4(5)

=20

Answer:

8

Step-by-step explanation:

so first you wanna deal with the (-4+9) which is just 9 - 4 so thats 5. then you multiple 5 by 3 which is 15. 15 plus 1 is 16