which of the following shows the general formula for factoring the difference of cubes? 1. (a +b) (a^2 - ab + b^2) 2. (a - b) (a^2 - ab - b^2 3. (a + b) (a^2 + ab + b^2) 4. (a - b) (a^2 + ab + b^2

The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost

Having a hard time understanding this question (see attachment).

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