Which equation is a linear function

1. y = x/2 - 5

2. y = 2/x + 3

3. y = x2 + 7

4. y = 2x - 1

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3

125 yards

step-by-step explanation:

i take 75 plus 50.

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

happy to

pls mark as brainliest

a

step-by-step explanation: