for exercises 5-9 list the elements in roster form

the two digit numbers on a standard analog clock

Question

for exercises 5-9 list the elements in roster form

the two digit numbers on a standard analog clock

jim_thompson5910 · Answer

Looking at an analog clock, the one that looks similar to this http://ecx.images-amazon.com/images/I/51WYVT9176L._SY300_.jpg we see the whole numbers 1 through 12

jim_thompson5910 · Answer

when they say to list the elements in roster form, they just want you to list out EVERY element 

in this case, just the two digit numbers

so we just write $\LARGE \{10, 11, 12\}$

jim_thompson5910 · Answer

don't forget to write the curly braces so the teacher knows that you're indicating a set of values