Write the phrase "four times as many apples" as an algebraic expression using a as a variable for the number of apples. 4xa? ?

Use the data on the dot plot to answer the question. how many people read for more than three hours last week? i'm on a unit test review

Heather is a cashier. she can ring up 1212 customers in 99 minutes. at this rate, how many minutes does it take her to ring up 44 customers?

How is the interquartile range calculated?