Add and simplify (-4+n-2n^2) + (2-5n-6n^2)

Since heat touching the surface of an ice cube causes it to melt, is it better for an ice cube to have a large surface area or a small surface area? I'm thinking that the bigger the surface area the slower it will melt am I right

Manny receives 6 dollars each week for allowance. He also had 45 dollars saved from birthday gifts. If he currently has 111 dollars, write an equation to represent how many weeks Manny has been saving money. A. 6 + 45 = 111w B. 6w = 111 + 45 C.

Can the sum of two negative numbers ever be positive?

Which polynomial is in standard form? A) 4a + 6a2 + 5a3 B) 4a + 5a3 + 6a2 C) 5a3 + 4a + 6a2 D) 5a3 + 6a2 + 4a

Y=6x Y=5x+7 How do you solve this

What is the answer to this (143 (5) + 67) 5=

Least common multiple of 10 and 15

Adam's father spent 1 hour and 50 minutes working on his truck. If it was 7:35 when he stopped working, what time was it when he originally started?

If Sara could type 90 words a minute about how many words could she type in 10 mins

On a trip from virginia to florida the sampson family wants to travel at least 420 miles in 8 hours of driving what must be their average rate of speed