Answer:
7/25
Explanation:
cos2A=1-2sin^2A
or, Cos2A=1-2.(3/5)^2
or, Cos2A=1-2(9/25)
or, Cos2A=1-(18/25)
or, Cos2A=(25-18)/25
or, Cos2A=7/25
Shondra should be sure she will have enough in her account to be able to make the monthly payments.
Hope that helps and feel free to ask me more questions :)Brainliest??