Questions 13 & 14 FAST PLS ITS A TEST! WILL GIVE BRAINLIEST!

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

Which equation expression the relationship between the number of boxes b and the number of cans c and the proportion is 48