Another algebra question 8 POINTS

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Which expression is the factorization of x^2+10+21