The best answer would be
2.4 x 10 ^6
10 to the sixth power multiplied by 2.4
Slope
m = (y2-y1)/(x2-x1)
m = (10 - 7)/(2 --1)
m = 3/3
m = 1
To find the equation
y = mx + b
m is slope
y = 1x + b
plug in one of the equations to solve for b
10 = 1(2) + b
10 = 2 + b
subtract 2 from both sides
8 = b
The equation is
y = 1x + 8
or you can write it as
y = x + 8
Hope this helps
The new price is 52.50
30x2=60
30/4=7.5
7.5x3=22.5
22.50+30= 52.50