Thu gọn đa thức sau và tìm bậc của mỗi đa thức a) A=2x^2 y^5-5x^3 y-7x^2 y^5+4x^3 y-8x^2 y^5+6x^3 y;
c) C=2x^2 y-8y^2+5x^2 y+5z^2-3y^2+4z^2

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

Translate this phrase into an algebraic expression. 21 more than twice goran's savings use the variable g to represent goran's savings. need to know fast.

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old