If 4 people can paint 8 walls in 60 minutes, how long will it take 5 people to paint 4 walls?

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

4+(2+x) can you me solve this problem

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$