Solve for x in terms of the other matrices and/or their inverses. x=b+ax

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.

Vanessa earns a base salary of $400.00 every week with an additional5% commission on everything she sells. vanessa sold $1650.00 worth of items last week.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer