S(x) = 400/(x^2 + 1)
gives the number of unit sales in x days after a grocery store reduces the price for Crispy Cereal. To the nearest whole unit, how many unit sales will there be 3 days after the price reduction?

A) 4 units
B) 8 units
C) 40 units
D) 80 units

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96