Heather is a cashier. she can ring up 12 customers in 9 minutes. at this rate, how many minutes does it take her to ring up 44 customers?

What is the square root of 45? (step by step working plz)

Edger needs 6 cookies and 2 brownies for every 4 plates how many cookies and brownies does he need for 10 plates

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220