Data is shifted toward the lower numbers

20y5 times 2 is 1010 times -2 is -20, plus y

Think of it as five or above give it a shove. change the 5 or above to the right to a zero and add one to the number on the left.

Ithink the answer is c

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.