Is 8.54 rational i am stuck and cant find answers

Chris swam once along the length of a pool that has a perimeter of 124 yd. The width of the pool is 20 yd. How many yd did he swam

In how many distinct ways can the letters in engineering be arranged?

The volume of 10 drops of liquid is 0.1 fl oz. What is the volume of 1000 drops

It is time to cool off on a hot summer day! Team sunshine is filling an inflatable kiddie pool from a garden hose. The pool has 30 gallons in it and Team sunshine is adding 8 gallons per minute with a garden hose.

Consider the example of finding the probability of selecting a black card or a 6 from a deck of 52 cards.

The slope of the line whose equation is 8y = 2x 4

Original price of a book: $15.50 discount is 10%

Bee Paul, store manager for Jay's Appliance, is having a difficult time placing a selling price on a plasma television that originally costs $600. Bee knows his boss would like to have a 55 percent markup based on cost.

A new internet phone company advetises that you can call any country in the world for 3 cent per minute. You regularly call your friend in India and talk to her for 20 minutes. How much would the phone call cost?

A school basketball team has an expense account and a fundraising account. After t weeks, the balance of the expense account is (450-70t) dollars and the balance of the fundraising account is (275+48t) dollars. a.