Answers: 3
Mathematics, 21.06.2019 17:30
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?
Answers: 1
What is the sum of the series?
10
Σ(7k– 2)
k=1...
10
Σ(7k– 2)
k=1...
Mathematics, 10.03.2020 00:27
Mathematics, 10.03.2020 00:27
English, 10.03.2020 00:27
Mathematics, 10.03.2020 00:27