Y - 9 = 15x - 75
y = 15x - 75 + 9
y = 15x - 66 y = mx + c, slope = m
m = slope = 15
Number of tables al four restaurants have;
= 4 * 30
=120 tables
Two new restaurants + 4
=6 restaurants
(120+15+9)= 144 tables
Mean = total # of tables/ total # of restaurants;
144/6
=24
This is the mean so it decreases. I hope this helps even though you didn’t actually post the number line
Triangle=1/2 times base times height
base=32
height=24
the lateral surface area is not including bottom so just the 4 side triangles
4 times 1/2 times base times height
4 times 1/2 times 32 times 24
2 times 32 times 24
1536
lateral surface area is 1536 square centimeters
