1 of 2 type of lettuces
1 of 4 vegetables
1 of 7 dressings
2*4*7 = 56 different salads
Answer:

Step-by-step explanation:
Let
x------> the number of days
y----> the cost of renting a car
we know that
For 

For 
The rate is equal to

so

In this problem. the car has been rented for more than a week
therefore

The cost of renting a car is equal to

Answer:
The third one!
Step-by-step explanation:
Answer:
Point E is given by 
Step-by-step explanation:
Let points C and D be
and let point E divides it in ratio
.
Then coordinates of point E are given by 
Put
Point E is given by 
Now plot point E.