Combine like terms:

7x - 2y + 8 - 5x + 3

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

Which one ? is the answer and how to find this answer

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