What is this sweet pastry?

Donut
Simplify the rational expression.
(x^2+5x-14)/(x^2-4x+4)
(x+7)/(x-2)
Solve the equation.
5/x=7/(x+2)
x=5
Multiply and simplify:
(6x^2-18x)/(x^2-10x+21) * (x^2-14x+49)/(3x^2)
(2(x-7))/x
Add the expressions and simplify.
12/(5x)+7/(6x)
107/(30x)
Which former Warriors star was just traded from the Brooklyn Nets to the Phoenix Suns?
Kevin Durant
Simplify the rational expression.
(x^2-9x+14)/(x^2-5x-14)
(x-2)/(x+2)
Solve the equation.
(x+12)/3=(2x+3)/(x+2)
x= -5, -3
Divide and simplify.
(5x^2y^3)/(x^7) div (30xy^4)/(y^3)
y^2/(6x^6)
Find the Least Common Multiple (LCM):
10x^2-15x
5x^3
5x^2(2x-3)
What breed of dog is this?

Dachshund
Simplify the rational expression.
(2x^2+2x-4)/(x^2-5x-14)
(2(x-1))/(x-7)
Solve the equation.
1/(x+6)+(x+1)/x=13/(x+6)
x=2,3
Multiply and simplify.
(x-3)/(2x-8) * (6x^2-96)/(x^2-9)
(3(x+4))/(x+3)
Add the expressions and simplify.
x/(x^2-x-12) + 5/(12x-48)
(17x+15)/(12(x-4)(x+3)
What is the capital of Ireland?
Dublin
Simplify the rational expression.
(8x^2+10x-3)/(6x^2+13x+6)
(4x-1)/(3x+2)
Solve the equation.
(3x)/(x+1)+6/(2x)=7/x
x=-2/3, 2
Divide and simplify.
(3x+27)/(6x-48) div (x^2+9x)/(x^2-4x-32)
(x+4)/(2x)
Subtract the expressions and simplify.
(x^2-5)/(x^2+5x-14) - (x+3)/(x+7)
(-x+1)/((x+7)(x-2)
What is the German word describes the double or look-alike of a living person?
Doppelgänger