Help me with this I'm stuck I will give you branliest

d = 9

Step-by-step explanation:

Use the slope formula to calculate m and equate to m = 3

m =

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

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

3(d - 4) = 15 ( divide both sides by 3 )

d - 4 = 5 ( add 4 to both sides )

d = 9

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.

whats the rest of it?