Mr. White drives 55 km a day for work. How many km will he drive in: a. 5 days?
b. 8 days?
c. 15 days?
d. Write an expression to represent the number of km he will drive in d days

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