Solve the triangle
Round to the nearest tenth when necessary

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 price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?