1. find the solution for 12 + x = 20 from the numbers 32, 10, and 8.
   
   

A32

B10

C8

D-81

1. find the solution for 15/d = 5 from the numbers 3, 10, and 20.
   
   

A3

B10

C20

Dnone are a solution

1. find the solution for -4n = -16 from the numbers -4, 4, and 12.
   
   

A-4

B4

C12

Dnone are a solution