Which number has the value 10 times greater for the digit 5 than the digit 5 in 156.32

Use the distributive law to multiply. 3(4x + 5y + 6)

Which one is true about the hexagons ?

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.