What's the area please help?

48 units^2

Step-by-step explanation:

So i split the arrow to make it just one rectangle and one triangle

Area of rectangle

= 4×10

= 40 units^2

Area of triangle

= (12-10)×8×1/2

= 2×4

= 8 units^2

Total area of the arrow

= 40+8

= 48 units^2

24

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116