Can someone pls help with this exam question?

Step-by-step explanation:

here,

the prices of two radios are in the ratio. x : y

let the price increased be x

and price reduced be. y

now,

for price increased

(x + y)

and

For price reduced

(x - y)

then,

now subtract (1) from (2) we get,

now put y = 5 in (2) we get,

now the ratio x : y in the lowest terms

paula, cory, and krista

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap