To mail a first class letter, the U. S. Postal Service charges $0.45 for the first ounce and
$0.23 for each additional ounce. It costs
$2.29 to mail you letter. How many ounces
does your letter weigh?

help pls

2.29-.45= 1.84 so now you would divide it by .23 and you should get 8 therefore your letter weights 8 ounces

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.