What is the simplified form of the expression?

x^8 * 2y^10 * 5x^5

a. 10x^80 y^10
b. 10xy^10
c. 8x^13 y^10
d. 10x^13 y^10

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Steve had 48 chocolates but he decided to give 8 chocolats to each of his f coworkers. how many chocolates does steve have left

Express -5 2/5 as an improper fraction.