* ANSWER ASAP *
This is difficult for me, and i don't get it??

28

Step-by-step explanation:

Since DI is 14, then DJ would be the same length, and so would DC. So we add DJ plus DC, which is 14+14. 28 is our answer.

 Scott to deliver his packages = 30 times and -3 is his delivery time decrease per day.

Explanation: Since the line passes from the two points (3,21) and (6,12)-

as we know that the equation of a line passes through two points and is   ×

Thus equation of the line is ×(x-3)

= y-21=-3(x-3)

=y-21= -3 x+9

3 x +y=30, Which is the expression of Scott's delivery times on different days.

since according the graph- y-intercept= 30, which is the times in which Scott delivering his product initially.

Now, we have to find out Scott's delivery time decrease per day, for this slope of line 3x+y=30  is, m =

m= =-3

so required answer is,  slope=-3