Emma repairs bicycles. She keeps a record of the cost of the repairs.
The table gives information about the costs of all the repairs which she carried out in
one week.
Cost (£C)
Frequency
0 3
10 7
20 6
30 8
40 9.
Find the class interval in which the median lies.

You’re ordering more thread for blue jeans co. you usually purchase from ted’s threads, which sells 12 thread spools for $27. you recently received a notice from wade's wares that says you can buy thread from them for $2.30 each for the first 2 dozen and $2 a spool thereafter. you need to order 5 dozen spools. what percentage can you save by going with wade’s wares?