State whether the triangles are similar. If they are, write a similarity statement and the postulate or theorem you used.

If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /