Kelby has several pets. She has BBB birds, CCC cats, and FFF frogs.
The expression B+(C+F)B+(C+F)B, plus, left parenthesis, C, plus, F, right parenthesis represents the total number of pets Kelby has.
What does C+FC+FC, plus, F represent in this context?
Choose 1
Choose 1

(Choice A)
A
The total number of cold-blooded pets

(Choice B)
B
The total number of warm-blooded pets

(Choice C)
C
The total number of pets with 222 legs

(Choice D)
D
The total number of pets with 444 legs

D I am sure

Step-by-step explanation:

Sub to TK YoshiPlayz

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."