Convert 11.42424242 to a rational expression in the form of a over b , where b ≠ 0

Which of the following is the equation that says that the product of a number and ten is equal to 20 percent of that number ? a) 10n= 2.0n b) 10+n=.20n c) n+ .20n=10 d) 10n=0.20n

Determine the relationship of ab and cd given the following points

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?