What is 2.8 * 104 in standard form?

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