It should be Cordinate one
The answer is 10 because its in the tens place
Answer:
Height of the object is 68.6 cm.
Step-by-step explanation:
The height of the object can be determined by:
= 
From the given question;
object distance from pinhole = 3.6 m = 360 cm
image distance from pinhole = 4.2 cm
height of image = 0.8 cm
So that;
= 
⇒ object height = 
= 
= 68.571
object height = 68.6 cm
Thus, the height of the object is 68.6 cm.
Answer:
7x + 2
Step-by-step explanation:
5 - 4 + 7x + 1
= 1 + 7x + 1
= 7x + 2
hope this helped u bud :)