please can somebody help me with this?

  168 cm²

Step-by-step explanation:

The shaded area is equal to the area of the rectangle after subtracting the area of the triangle. The relevant area formulas are ...

  A = LW . . . . rectangle area is the product of length and width

  A = 1/2bh . . . triangle area is half the product of the base and height

__

The rectangle area is ...

  A = (15 cm)(14 cm) = 210 cm²

The triangle area is ...

  A = 1/2(14 cm)(6 cm) = 42 cm²

The shaded area is ...

  rectangle area - triangle area

  = 210 cm² -42 cm² = 168 cm² . . . . shaded area

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

3

step-by-step explanation: