Ateacher offers her students 5 fake dollars to spend in the class store, when they get a perfect score on their math tests. if one of her students gets a perfect score on 4 of the math tests and already has 25 fake dollars, how many fake dollars, in total, does this student have to spend in the class store?

45 fake dollar.

Step-by-step explanation:

Given: teacher offer 5 fake dollar for each perfect score in Math test.

           One of Student get perfect score on 4 maths test.

          Student already have 25 fake dollor.

Now, solving to find total number of fake dollar teacher offered to student.

As given teacher offer 5 dollar for each perfect score in maths test and student got perfect score on 4 maths test.

Number of fake dollar offer to the student= ∴ Number of fake dollar offered to the student=  

We know, student already have 25 fake dollar.

Next, finding total number of fake dollar student have.

Total fake dollar student have= .

Total fake dollar student have=

Hence, student have total 45 fake dollar to spend in the class store.