Ijust want to know i i did this math problem correctly and if so or not explain why

Describe the relationship between the angles of similar triangles and the sides of similar triangles

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.