PLEASE HELP I WILL GIVE 40+ POINTS IF RIGHT

4b) 180

4c) 114

Step-by-step explanation:

4)

Area of rectangle:

A = bh

A = 15*9

A = 135

Area of triangle:

A = 1/2bh

b = 15 - 9 = 6

A = 1/2(6)(15)

A = 45

Combined:

45 + 135 = 180

5)

1st rectangle:

A = 4*12

A = 48

Middle rectangle:

h = 12 - 9 = 3

A = 6*3

A = 18

Last rectangle:

A = 4*12

A = 48

Combined:

48 + 48 + 18 = 114

1. Area = ½(a + b) × h

A = ½(9 + 15) × 15

A = ½ × 24 × 15

A = 12 × 15

A = 180mm².

2. Area = 2(l × b) + l × b

A = 2(12 × 4) + 6 × 3

A = 2 × 48 + 18

A = 96 + 18

A = 114m².

B

Step-by-step explanation:

The best answer would be B