Sandra is selling red and yellow roses. on the first day she sold 4 red roses and 1 yellow rose for a total of $7. on the second day she sold 3 red roses and 1 yellow rose for a total of $6. what was the price of the two types of roses?
use the substitution method pleaaass
pleasseee explain : )

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Common binomial factor of 6x(3x+7)+5(3x+7)

Describe the graph of 3x+2> 2 and 3x< 6