Examine the pattern and determine how many more shaded squares
than unshaded squares will be in the 100x100 square in the sequence
shown in the diagram on the right.

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