Can someone help me with this problem. It asks: “What values must x and y have to make quad. JKLM a parallelogram?”

ML = 42; LK = 26; KJ = 4x+y; JM = 3x-2y

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

If i purchase a product for $79.99 and two accessories for 9.99 and 7.00 how much will i owe after taxes applies 8.75%