Please help I will give your answer brainliest

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.

Write as a product of two polynomials. 2(3–b)+5(b–3)^2