Answer:
y=x^2+8x+13
Step-by-step explanation:
in standard form
y=x^2+8x+13
135.05 = 50 + 9.45x
85.05 = 9.45x
x = 85.05/9.45
x = 9
Mariana worked for 9 hours.
Answer:
she would have to pay about $88.49
Step-by-step explanation:
128.25x.35=44.8875
128.25-44.8875=83.3625
128.25x.04=5.13
83.3625+5.13=88.4925
40% is the answer because 6/15 = 0.4