You write y=mx+b
m= slope
x=variable
b= y-intercept
6.90(15%) = $5.86
Soup cost with 15% discount is $5.86
Now add 10% to $5.86
5.86+.59= $6.45
Now add 7% to 6.45
6.90
Answer:
x=17
Step-by-step explanation:
7x+15=4x+66
3x=51
x=17
An arc of a circle has the same measure as the central angle that intercepts it.
Central angle 1 intercepts arc AB.
The measure of central angle 1 is the same as the measure of angle AB.
The measure of arc AB is 30 deg.

Multiply 4 from both sides

Simplify