If anyone could help me with this I'd be really grateful.

A is the point of coordinates (4,6)

B is the point with coordinates (d,21)

The gradient of the line AB is 3

Work out the value of D

Please provide a explanation

d = 9

Step-by-step explanation:

Calculate the slope m of line AB and equate the result to 3

m =

with (x₁, y₁ ) = A(4, 6) and (x₂, y₂ ) = B(d, 21)

m = = = 3 ( multiply both sides by d - 4 )

15 = 3(d - 4), that is

15 = 3d - 12 ( add 12 to both sides )

27 = 3d ( divide both sides by 3 )

9 = d

ok

step-by-step explanation:

welll its a very hard question but ill

step-by-step explanation:

first you take the 6 dollars and add 10 to it then add the 50 to that then multiply by 8 with xy and your answer will be

hope this