They go up by 12
17-5=12
22-10=12
27-15=12
32-20=12
The number of friends change the total number of canvases needed, so the number of friends is the independent variable, so the answer is B.
In general 2^n is the number of pieces of information n bits can store.
(a) Antonio can use the formula 2^n-1 to indicate the maximum size of numbers an n-bit word can store.
(b) for a 16-bit system, the maximum number of keys Millie can collect is 2^(16)-1 = 65536-1=65535
(c) For a 14 byte program, there are 14*8=112 bits.
