If x+4/x+5 is a rational number then x doesnt belong to a)5/15
b)7/15
c)11/30
d)13/30
pls answer

(! ) three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

How does reflecting or rotating a figure change the interior angles of the figure?