There were some fiction and non-fiction books in second-hand bookstore. The number of fiction books was 3/5 of the number of non-fiction books. After an equal number of fiction and non-fiction books were sold, the ratio of the
number of fiction books to the number of non-fiction books left was 5:9. There were 240 books altogether. How many
books were sold altogether?​

2/3x + 7 = 29

step-by-step explanation:

two thirds = 2/3

plus a number = x

at least 29 = 29

there for you should get 2/3x + 7 = 29

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

10.4 inches

step-by-step explanation:

2x2x2.6