The positive number $a$ is $2,800\%$ of the number $c$, and $c$ is $2…

Question

Prompt

The positive number

a

2, 800%

of the number

c

, and

c

20%

of the number

b

. What is the value of

a - b

in terms of

c

23 c

140 c

560 c

2, 240 c