.6 because it is very low compared to the other numbers
answer
45 minutes
explanation
using the equation C(m) = 0.1m + 1, C(m) is the cost of the phone call (5.50)
5.50 = 0.1m + 1 subtract 1 from both sides
4.5 = 0.1m divide both sides by 0.1
45 = m
m is the number of minutes, so 45 minutes
20×30would equal600.All you have to do is take the two cerca out of the way. Then you multiply2×3and you get6. Then you add the two ceros and get 600.
Ex.: 20×30:20- 0=2+30- 3=2×3=6+00=600
tadah
Green Eggs and Ham is about Sam - I - Am trying to convince the narrator to try green eggs and ham