0.02 percent of 5000 is what answer. im stuck

Can someone check if i did this correct. it’s number 4 if you’re wondering.

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

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula , what is the temperature in celsius corresponding to r degrees rankine? a. 9/5(c - 273) b. 9/5(c + 273) c. 5/9( c - 273) d. 5/9( c + 273)