Use p for the price of the sandwich and drink. 
(p+ 2.95 x.15) + (p x .20)
(I JUST GUESSED. IM VERY DUMB, SO DO NOT TRUST THIS ANSWER.
        
             
        
        
        
Answer: 278.30 pounds (if the gasoline does not contain ethanol)
317.12 pounds (if the gasoline does contain ethanol)
Step-by-step explanation:
If the truck averages 12 miles per gallon, then in 170 miles it consumes:
170mi/12mi = 14.17 gallons.
We know that for one gallon consumed, the carbon dioxide emitted into the atmosphere is 19.64 pounds. (assuming it does not contain ethanol)
Then for 14.17 gallons consumed, we have a emission of:
14.17*19.64 pounds = 278.30 pounds 
I the gasoline contains ethanlol, for a gallon the emiision is around  22.38 pounds.
In this case the total emission is:
14.17*22.38 pounds = 317.12 pounds
 
        
             
        
        
        
Answer:
260,548668 or 260.55 round to the nearest hundreds  
Step-by-step explanation:
Area of the trapezoid: 
[(major base + minor base)x height]/2 
[(22 + 12) x 12]/2 = 204 cm^2 
radius = diameter / 2 = 12 / 2 = 6 cm 
Area of a semicircle 
(radius^2 x pi)/2 = (6^2 x pi)/2 = 56.548668 cm^2 
total area = 204 + 56,548668 = 260,548668 cm^2 
 
        
             
        
        
        
The space diagonal will have length ...
... d = √(1² +4² +2²) = √(1 +16 +4) = √21
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This can be found using the Pythagorean theorem. A drawing can help. Find the length of any face diagonal, then use that length as the leg of a right triangle whose hypotenuse is the space diagonal and whose other leg is the edge length not used in the first calculation.