What happens to the graph of a periodic function if the amplitude, a, is between 0 and 1

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Which table shows a proportional relationship between miles traveled and gas used?

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error