Please help I don’t know

te ayudo si me en señas ingles por q ue  no en tensio s

tep-by-step explanatio

k = 16/3

Step-by-step explanation:

Start by calculating the difference on the left side.

1/4k - 4 + 5/4k = 3/8k + 2

Multiply both sides of the equation by 8

2k - 32 + 10k = 3k + 16

Calculate sum on left side

12k - 32 = 3k + 16

Subtract 3k and add 32 to both sides

9k = 48

Divide both sides by 9

k = 48/9 = 16/3

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm