Catherine studied 1.25 hours for her science test. this was 0.5 hours less than she studied for her algebra test. write and solve a subtraction equation to find how long she studied for her algebra test.

The equation would be: 1.25hours + 0.5hours
When solved, Catherine would have studied for her Algebra test for 1.75 hours.

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.