Step-by-step explanation:
x+6=3x+21
2x=-15
x=-7.50
7(72) + 0.10(2574) = 504 + 257.40 = 761.40 <== this is how much she will earn. Your gonna have to pick the answer choice that is the closest since no answer choices were given.
200 * 0.15 = $30 off
200-30 = $170
Nancy must pay $170
