For questions 2 and 3, simplify each polynomial. 2x2 + 8 – 4x + 3x – 6x2 + 7
A. –8x2 – 7x + 15
B. –4x2 – x + 15
C. 4x2 + x + 15
D. 8x2 + 7x + 15

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.