Math proportions help?

Could someone help me with these math questions please.








1. Solve the following proportion


4/x = 5/7





A)5


B)5.6


C)5.29


D)6











2. Solve the following proportion


3/y + 2 = 2/y





A)4


B)1


C)3


D)2





3. Quadrilateral A B C D is similar to Quadrilateral E H G F. Angle B C D is labeled 65 degrees. Quadrilateral ABCD is similar to Quadrilateral EHGF. Given measure of angle BCD = 65, find the measure of angle HGF





A)115


B)90


C)65


D)75

Math proportions help?
1. B


2. impossible.


3. C