How to write a letter to the production manager of a leading chocolate/biscuit factory requesting a sponsorship to supply refreshment for the " children day celebration " in a school ???

Find the center and the radius of the circle with the equation: x^-2x+y^2+4y+1=0

Which change should be made to improve this sentence? allen jumped in the puddle and his new shoes got wet and muddy. a)the new shoes got wet and muddy and allen jumps in the puddle. b)allen jumped in the puddle and got his new shoes wet and muddy. c)allen jumped in the puddle and gets his new shoes wet and muddy. d)the new shoes are getting wet and muddy and allen jumped in the puddle.

Where does the receiver live in the giver?