Valerie has 10 cds in her music case. seven of the ds are pop music cds. what is this amount written as a decimal?

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.