A salesperson bought a case of pens. On Monday, he sold ½ of the pens. On Tuesday, he sold 30 more. On Wednesday, he sold 1/3 of the pens that were left. On Thursday, he sold the remaining 40 pens. How many pens were originally in the case?

Simplify the expression 10/11(22z) + (a+5) -1

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width