Pls help im so confused

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? $$

Which numbers have the same absolute value? choose all that apply. asap will mark at brainliest

Write the equation of the circle centered at (10,-2) with radius 2