Find the measures.
Help me plis :)

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 private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Erik buys 2.5 pounds of cashews. if each pound of cashews costs $7.70, how much will he pay for the cashews?