A coffee shop sells cups of coffee and breakfast Sandwiches. Roland buys 2 cups of coffee and 2 sandwiches and spends $22. Mariel buys 5 cups of coffee and 3 sandwiches and spends 40. How much does a cup of coffee cost? How much does a sandwich cost?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters