(-1 3/2)^2 pls answer correctly or reported

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?

If the diagram polygon abcd is a reflection across ef to make polygon a'b'c'd'.