What the difference between positive and negative numbers?

John has 28 apples he takes away 10 how many apples does he have

Find two numbers whose difference is 120 and whose product is a minimum.

Solve for a. 8.1 = a - (-2.4)

There are 90 fith-grade students going on a feild trip. Each student gives the teacher $9.25 to cover admission to the theater and for lunch. Admission for all the students will cost $315, and each student will get an equal amount to spend on lunch.

What is the oppostie of _12

15% of $17,500 9.5% of $15,000 11% of $18,050 10.5% of $21,000

You need to cover a section of floor in a hallway that is 31 inches wide by 9 ft long. How many square meters is this?

Find two positive numbers such that their product is 192 and their sum is a minimum without calculus

5 mile equals what in yards

What is The 2+21+221:22