WILL MARK BRAINLIEST

Find the area of the following shape. You must show all work to receive credit.

So the formula would be Area =  i + b/2 -1.

So "i" is how many squares or corners are inside the shape, witch in this case is 43.

"b" would be how many points lied in the border of the shape witch would be 6

So 43 +( 6 / 2 )- 1

43 + 3 - 1

45

The area of the shape is 45

51.5 units squared

Step-by-step explanation:

CD triangle has area of 7.5

E-F triangle has area of 6

FA triangle has area of 5

E-F-A rectangle has area of 3

The biggest rectangle has area of 30

Add all.

7.5 + 6 + 5 + 3 + 30 = 51.5 units squared

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is: