She would pay $23.00 because...
15% of 20 = 3
20 + 3 = 23
Answer : $23.00
Answer:

Step-by-step explanation:

♨Rage♨
Initial value: 1. rate of change: 3 over 5.
Answer: -2x + 5y = 8
Step-by-step explanation:
Since the lines must be parallel, the slopes must be the same, so keep the coefficients of x and y
Substitute the values of x and y from the given coordinate (6,4) to find the new constant, b, the y-intercept.
-2x + 5y = b
-2(6) + 5(4) = b
-12 + 20 = b
8 = b
Rewrite the original equation substituting the new b for the original -15
-2x + 5y = 8