Please give me the correct answer

Using the graph below, select all statements that are true. a. f(0.6)=0 b. f(-3.2)=-3 c. f(5.1)=5 d. this is the graph of the greatest integer function. e. this graph is one-to-one.

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?