Anyone in 10th grade please help me because I have to pass this later at 10 pm:( Directions:Use the product rule to simplify the following monomials.

18.) 19m⁸n⁸ - (4m⁵n)(3m³n⁷)
19.) (-5cd)(-3c⁴d) - (7c²d²)(2c³)​

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

The triangles are similar. what is the value of x? show your work.