Factor this expression. check by multiplying factors. x^2y^2+ay^2+ab+bx^2

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?

Sherrie is baking a pie for her family. she leaves the room and comes back to 35% of the pie having been eaten before she can put the topping on. how much 1 square inch strips of dough will she need for the top, now that a portion is missing? round your answer to the nearest while nimber.