You average weekly pay for the past six weeks is $140. What do you need to earn on the seventh week for the average to be $145?​

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week

What is number 31 as a sum of tens and ones?