Identify the expression equivalent to four parentheses X plus X +7 parentheses minus 2X +8-4

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2

Mr. jones determined that the equation y = 98 - 16/5 x could be used to predict his students' unit test scores, based on the number of days, x, a student was absent during the unit. what was the meaning of the y-intercept of the function? (by the way the 16/5 is a )

Polynomials plz quick 1: subtract and simplify (–y^2 – 4y – 8) – (–4y^2 – 6y + 3)