Mrs. Lockhart goes to dinner with her 10 besties and they spend $330 on their dinner. How much would their total cost be if they leave a 20% tip? ​

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

If i have one apple and give you the apple, how many apples do i have?

What is the area of the triangle 10 13 12