6. The variable k represents a value in the set {3,5,7,9). Which value of k makes the statement below true? *
2 (4 + k)- 11 = 15
O A. 3
O B.5
O C.7
O 0.9

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.