Have u tried to use slander its an app for answers ?
Answer:
3
Step-by-step explanation:
12 x 2 = 24
24 + 2 = 26
26 + (-3) = 23
23 - 16 = 7
7 - 4 = 3
Answer: The sash will have 20 diamonds when it is completed.
Step-by-step explanation:
Given: The length of American sash= 8 feet
Since, Joseph wants to add a diamond shape every 0.4 ft along the sash.
Therefore, the number of diamonds he will need to complete the sash= 
⇒ The number of diamonds he will need to complete the sash= 
Hence, the number of diamonds he will need to complete the sash= 20
Earths diameter is about 7,927 miles.