Your question is Multicollinearity in Linear Regression. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
What is multicollinearity in a linear regression model?
Explain how multicollinearity affects coefficient estimates, standard errors, hypothesis tests, and interpretation. Describe at least two diagnostic methods and appropriate remedies, while distinguishing multicollinearity from correlation between the response and a predictor.