Kevin is 4 times as old as Daniel and is also 6 years older than Daniel.
How old is Daniel?

2 years

Step-by-step explanation:

K = 4D. K = D + 6

4D = D + 6

-D. -D

3D = 6

3. 3

D = 2

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

step-by-step explanation:

the answer is 128