Which equation represents a circle with the same radius as the circle shown but with a center at (-1, 1)?

(x - 1)2 + (y + 1)2 = 16
O (x - 1)2 + (y + 1)2 = 4
O (x + 1)2 + (y-1)2 = 4
(x + 1)2 + (y – 1)2 = 16
2

What ratio is proportional to 18/21

Jonah buys a television that costs $445. sales tax in his state is 7 percent. which of the following expressions represent the amount of tax on the television?

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?