if 1/2 gallon of paint covers 1/12 of a wall, then how many quarts of paint are needed for the entire wall

6 gallons which is 24 quarts

Step-by-step explanation:

because while covering 2/12ths of a wall you used a whole gallon of paint so if 1 gallon covers 2/12ths of a wall you have 10/12ths left and s you already used 1 so it  would leave you with 5 gallons and 10 divided by 2 is 5 which would give you your answer  6 gallons and there are 4 quarts in a gallon so you would multiply 6 *4 = 24

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.