I need help answering these algebra questions pleaas , I would really appreciate the help with an explanation if possible. thank u

An of a of 60. a of 36 is . isbe ?to .

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

Acollection of nickels and quarters is worth $2.85. there are 3 more nickels than quarters.how many nickels and quarters are there?