What is the value of - 2x^2-4x-11 if x=-3

Which category do all of these shapes belong to

323.6 divided by 47 rounded to the nearest tenth

The thickest vinyl floor tiles available are 1 over 8 inch thick. The thinnest tiles are 1 over 20 inch think. How many thin tiles would equal the thickness of one of the thick tiles?

What is the height of the prism if the base is 6 inches and the volume is 42 inches

8 - 2x = 2 (3 - x) + 2

Solve the equation if x = 7. 5x + 9

How do I simplify the radical: square root of 324

Checks that have been processed by the bank are no longer negotiable are

Why is 21 over 30 bigger than 2 over 3?

9 weeks 5 days - 1 week 6days =