Solve problem using substitution
a = 3b + 1
5b - 2a = 1

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Write and solve a real word problem that involves determining distance on a coordinate plane

What are the exclude value of mn+3m