Respuesta :

joonheepark

Step-by-step explanation:

1. 2(d+9)

2(8+9)

2(17)

=34

2. d÷4

8÷4

=2

3. ef÷4

(3×4)÷4

12÷4

=3

4. 4f+d

(4×4)+8

16+8 =24

5. (5d-25)÷5

((5×8)-25)÷5

(40-25)÷5

15÷5 = 3

6. d2+7

(8×8) +7

64+7

=71