There are 45 new houses being built in a neighborhood. last month, 1/3 of them were sold. this month, 1/5 of the remaining houses were sold. how many houses are left be sold?

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

How many grams the dog will eat in 3 days?

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?