Sophia's school took a field trip. a total of 21 vehicles were needed for the trip. some students took the bus, and some students car-pooled. there were 30 people on each bus and 4 people in each car. 318 people altogether attended the trip. how many buses were needed for the trip?

Graph y = -|x| + 2. click on the graph until the correct one appears.

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

The price for gasoline is represented by the equation y=3.69x, where y represents the total price for x gallons of gasoline. on a graph, the number of gallons is represented on the horizontal axis, and the total price is represented on the vertical axis. determine whether each statement describes the graph of the equation. select true or false for each statement