Ineed with my math! the problem is : 150% of what number is 18

For what value of jn is mn parallel to kl

In the rectangle below ac=30 units what is de

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? $$