If a ⊂ b, then which of the following describes the relationship between a and b?

1. set a can have the same number of elements as set b.
2. set b may have less elements than set a.
3. the intersection of sets a and b must be the empty set.
4. set b may have more elements than a does.

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

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

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp