the line of best fir for a set of data is y=13x-4.7 a point in the set of data is when x is 4 and y is 53 what is the residual for this point when x is 4

Ateacher asked his students to vote for an animal to be their class pet. five-eighteenths of the students voted for a rabbit, voted for a snake, and voted for a hamster. which statement is true? more students voted for a hamster than a snake. more students voted for a snake than a rabbit. more students voted for a rabbit than a hamster. more students voted for a snake than a hamster.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a