Simplify the number using the imaginary unit i. Please show work. 3 pts mathematical process and 2pts correct answer

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1