I have a collection of pennies that can be arranged in piles that each contain exactly 9 pennies. My pennies can also be arranged in piles that each contain exactly 10 pennies, exactly 11 pennies, and exactly 12 pennies. What is the least number of pennies that can be in my collection? math

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

The local farm is advertising a special on fresh picked peaches. the farm charges $4.25 to pick your own peck of peaches and $3.50 for each additional peck you pick. write an equation for the total cost of peaches in terms of the number of pecks. deine your variables. how much does it cost to pick 3 pecks of peaches?

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?