How would you write 4.03 as a mixed number in simplest form?

Asap! i'm not good math and i'm lost.

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.