Step-by-step explanation:
The range
The largest number minus the smallest number
27 - 12 = 15
Either a or b
Answer:
The elevator need to climb 117 feet and it reaches 117 feet in 6.5 seconds only. Now, let’s solve for the unit rate of the elevator. What is it’s speed. => 117 feet is the distance that the elevator needs to climb. => 6.5 seconds is the now. To find the speed let’s follow that formula. S = d/t => 117 feet / 6.5 seconds => 18 feet per seconds Unit rate of the elevator speed = 18 feet/s
Answer:
the graph on the right-top
Step-by-step explanation:
Transferring an "x" to the right side in
, we get 
The system of inequalities is

We have y=2x+2 - ascending function with a=2, b=2
b=2 shows that ascending function intersects Y-axis is in y=2 - that situation is only on the right-top and left-down. So, we refuse left-top and right-down.
y=-x-3 - descending function with a=-1, b=-3
y<2x+2 is an area below the ascending function and we see that on the left-
is an area above the descending function
On the left-down we have an area above both functions, so we refuse this picture
Right-top is correct
Answer:
30.3
Step-by-step explanation:
a liter is 1000 ml
1000*1.5=1500
455/1500*100=30.3333333333333333