The ratio of Boy students to Girl students is 8:9. There's 270
student Girls. How many Boys
are there?

Let w=23 . what is the value of w + 45 ?

What are the relative frequencies to the nearest hundredth of the columns of the two-way table? a b group 1 102 34 group 2 18 14

Afurniture store has 1,500 chairs in storage. a manager uses three delivery receipts to simulate samples to check 100 chairs and note the number of brown chairs. suppose the actual number of brown chairs is 1,080. about how many brown chairs are