That would be 644.8 / 31 = 20.8 feet / second
C. Buying it a percent discount without sales tax.
Because of not having to pay $10, so it is awesome.
Answer: 3424.28
Step-by-step explanation:
Given data : 378, 361, 350, 375, 200, 391, 375, 368, 321
Number of data values = 9
Mean :

Variance = 

Variance = 
Answer: Yes, Brad has enough oranges.
Step-by-step explanation:
Given :
The orange required for one bowl = 12 oz
Thus orange required for 12 bowls = 
Oranges available with Brad for 12 bowls = 10 lb = 
(1lb=16oz)
As organges required is less than oranges available with Brad, thus Brad has enough oranges.
Distraibutiv peorpoty
a(b+c)=ab+ac
we have
3a+7+2(3+a)
distribute first
2(3+a)=6+2a
now we have
3a+7+6+2a
move like terms together
3a+2a+7+6
add lke terms
5a+13