12. A submarine submerged at a depth

of - 40 ft dives 57 ft more. What is

the new depth of the submarine?

A theater has 500 seats. Three fourths of the seats are filled. How many seats are filled? Show work

The zeros for f (x) = x^4-4x^3-9x^2+36x are

Abigail is putting tiles on a table top. She needs 48 tiles for each of 8 rows. Each row will have 6 white tiles. The rest of the tiles will be purple. How many purple tiles will she need?

What algebraic property is demonstrated in the equation below? 5 (8x-4) - 10 = 40x-20 - 10

What is the solution to the system of equations? -3x-4y+z=-1 2x+y-z=-8 x+8y-z=23 A. (-3,4,6) B. (4,-3,-1) C. (-3,4,8) D. (3,-4,-6)

Suppose that 5 cards are drawn from a well-shuffled deck of 52 cards. What is the probability that all 5 are not black?

I have 14 tens, 6 hundreds, 7 ten thousands, and 15 ones. What number am I?

Average speed for a driving 330 miles in 5 1/2 hours

During his tennis career in singles play, John won 4 fewer tournament A titles than tournament B titles and 2 more tournament C titles than tournament B titles. If he won 13 of these titles total, how many times did he win each one?

Anyone know the answer to this simple little equation? It's giving me a bit of a tough time ... 3x^2 (4x-7)