In 2017, the world's population was 7.451 billion people. tge world growth rate is 1.13% annually, (a) what the projected world's population in 2035? (b) how long will it take for world's population to double? (c)how long will it take for world's population to triple?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Mrs. blake's bill at a restaurant is $42.75. she wants to leave the waiter an 18% tip. how much will she pay in all, including the tip?

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