Use formula p=m/v
P is density
M is mass
V volume
So you have the volume already now 8x5x4= 160 which is the volume
P= 1800/160 after you divide you get 11.25
The density is 11.25
Answer:314
Step-by-step explanation: To find area you use the formula πr^2. Your radius is 10 (since it is half your diameter). Plug it in to get π(10)^2. or 100π. Then just substitute 3.14 for π. You have 100 times 3.14 which equals 314
Answer:
5088
Step-by-step explanation:
The initial value of the car is $19340
The rate of decrease is 12.5%
The value of the car after 10 years is given by

Substitute the values to get;




To the nearest dollar we have $5088
The correct answer is choice C