Can I get the answer please. If you get it right, the reward is a BRAINLIEST

66.75m

Step-by-step explanation:

Area of Triangle: 4.5m

height is 4.5m

base is 2m

overall height is 10m so 10-3.5-5= height of triangle

overall base is 10.75m so 10.75-3.25-2.5-3= base of triangle

Area of the smallest rectangle: 13.5m

base is 3m (provided)

height is 4.5m (same as triangle)

Area of the medium sized rectangle: 16.25m

base is 2.5m (provided)

height is 6.5

overall height is 10m so 10-3.5= the height of this rectangle

Area of largest rectangle: 32.5

base is 3.25m (provided)

heigh is 10m (provided)

the answer will be the last one

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.