(5pts) A car is advertised as having a mileage of 420 km/ft. Convert this rating to miles per gallon. Perform this calculation and use
the following conversion:
1km = 1000 m; 1m = 1.094 yd; 1mi = 1760 yd; 1 ft = 12 in (you will need to change this one)
1 in = 2.54 cm (You will need to change this as well); 1 mL = 1cm; 1L = 1000 ml; 1 L= 1.06 gt; 4qt = 1 gal
GIVEN
QUESTION
Anyone please help me

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis:

answer is  

c.

56

hope you get this right

the answer is $4.45. i started by figuring out the cost of the plates and napkins. the easiest way to figure this cost out is through the tax. we know the way they found the tax is by multiplying the cost of non-food items by the tax rate (5% or 0.5). so, all we have to do to find the cost before tax is set up an equation and work this formula backwards. the equation is 0.19=0.05x where x is the cost of the plates and napkins. now all you do is divide both sides by 0.05 to come up with 3.8=x. now that we know the cost of the plates and napkins is $3.80, all we have to do is subtract this cost from the total cost of $8.25 giving us the cost of the watermelon which is $4.45.