1 over 8 as a negative exponent

How do you find the circumfrance of a circle?

The water company charges a residential customer $41 for the first 3,000 gallons of water used and $1 for every 200 gallons used over 3000 gallons. if the water bill was $58 how many gallons of water were usedanswersa 3400 gallonsb 6000 gallonsc 6400 gallons d 7000 gallons

The diagram shows a cuboid abcdefgh abcd is a square with area 25cm². find the volume of the cuboid.