What is -5 1/3 + 2 2/3

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

There are 18 female students and 16 male students in a class. which of the following expresses the ratio of female students to male students in simplest form? а) 10 b) 9 to 8 c) 8: 9 d)18/16

Elena's aunt bought her a $150 savings bond when she was born when elena is 20 years old the bond will have earned 105% in intrest how much will the bond be worth when elena is 20 years old