E is 5 more than d
f is 7 less than d

work out e-f

12

Step-by-step explanation:

(5+d)-(d-7)

5--7 = 5+7 = 12

To prove this:

d = 10

e = 5+10 =15

f = 10-7 = 3

15 - 3 =12

choice b is correct

step-by-step explanation:

we have been given the following system of linear inequalities;

we are required to graphically determine the solution to these system of inequalities. using a graphing tool, the solution is as shown in the attachment below;

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.