A bag contains blue marbles and red marbles, 31 in total. The number of blue marbles is 9 less than 3 times the number of red marbles. How many blue marbles are there?

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

Which of the following is an equation of a line parallel to the equation y=4x+1?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]