Respuesta :
A student may use a calculator for math problems in the ACT exam, but not in the SAT exam.
What is a calculator?
A calculator is a device which is used to conduct mathematical calculations, and the solution to the same is obtained within a fraction of a second. It may or may not be allowed to use in exams.
Hence, option C states that some exams allow use of a calculator, while some don't.
Learn more about a calculator here:
https://brainly.com/question/12633131
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