Tony runs to keep fit. He wants to run a total of 20 km each week. Here are the distances Tony ran last week.
6.25 km
4 km 750 m
872 km
Did Tony run 20 km last week? You must show how you got your answer.

You estimate that a kitten weighs 8 pounds the actual weight of the kitten is 6 pounds what is the percent error rounded to the nearest hundreth of a percent

Hye ryung is the president of the local chapter of the american medical students association (amsa). she is organizing local outreach and informational meetings. at her first meeting there are five people present (including herself). every month after that her group grows by 5 people. a. how many members are in the group after 6 months? b. the logistics of hosting and feeding her group at meetings was more complicated than expected. the cost of feeding 5 people at her first meeting was $30, for 10 people it was $35, for 15 it was $45, and after 6 months all of the costs had added up to $100. write a function to model the cost with the number of people attending meetings. c. what connections can you make between the linear growth of the group’s membership and the increasing costs of running meetings?

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative