Lost golf balls

This task is about reading information from a bar graph.

Michael and his sister Marnie live near a golf course. Each evening they go out to look for golf balls lost in the rough.

The club professional pays them 50c for each ball they return to him.

Marnie and Michael drew this bar graph showing how many balls they picked up in one week.

 

a)
What was Marnie's best day for finding golf balls, and how many did she find on that day?
 
Day _______________; _______________ balls
 
b)
What was Michael's worst day for finding golf balls, and how many did he find?
 
Day _______________; _______________ balls
 
c)
On how many days in the week did Michael find more golf balls than Marnie?
 
__________ days
 
d)
What was the best day for the two of them combined, and how many golf balls did they find altogether on that day?
 
Day _______________; _______________ balls
 
e) How much money did the two of them together earn for the week? $__________