Aroller coaster at a theme park takes fans on an exciting ride. in the first 20 seconds, it carries its passengers up a 30-meter hill, plunges them down 30 meters, and takes them back up a 15-meter rise. how much higher or lower from the start of the ride are they after these 20 seconds?

Which term best describes the association between variables a and b

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Read the equations in the table below. then drag a description of the situation and a table to represent each equation. indicate whether each of the relationships is proportional or non-proportional.