What is the area of the figure?

○ 45 cm²
○50 cm²
○70 cm²
○90 cm²​

third option; 70 cm²

Step-by-step explanation:

Rectangle:

5 x 10 = 50

Triangle:

1/2bh

18 - 10 = 8

1/2 5(8)

1/2 40

20

Total area:

50 + 20 = 70 cm²

you can't solve x because it is 2 linear equation and you only have one equation

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x