#1: 4*5 + 4*6=20+24=44
#2: 4*(5+6)=4*11=44
Answer:

Step-by-step explanation:
Coin toss:

Letter Selection:


A. independent (x) - expenses, dependent (y) - total cost
B. independent (x) - area, dependent (y) - price
C. independent (x) - time, dependent (y) - distance
D. independent (x) - size of carton, dependent (y) - number of items
For the first one a = 2.5. For the second one m = 4. For the third one m = -4