Guys I really really need help, it's math and I am not that good at it. It's easy just slopes there are a few questions but i will give u brainliest and so many points pls help me i am willing to give u lots of point i really need help though, please give me a clear answer most times people just see the amount of points i offer and answer in one word that is not relevant to the topic I really need someone to help me whoever likes slope please please please please please please please please please please This is literally one of the last math assignments of the school year please help me! I would divide the thing into different questions but they all correspond with each other PLEAASE HELP ME!

What is the binomial expansion of (2x-3)^5

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?