Pls help and explain(if you can)

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? $$

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points