Astore sells gift cards in preset amount. you can purchase gift cards for $20 or $30 . you spent $380 on gift cards. let x be the number of gift cards for $20 and let y be your gift cards for $30 . write an equation in standards for to represent this situation

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.

4th option is correct xy=-10

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