When i square -4 it says the answers -2i whats the i stand for

Match each equation with the operation you can use to solve for the variable. subtract 10. divide by 10. divide by 5. subtract 18. multiply by 10. add 18. add 10. multiply by 5. 5 = 10p arrowright p + 10 = 18 arrowright p + 18 = 5 arrowright 5p = 10 arrowright

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?