Time-and-a-half doesn't make enough sense to answer the question. If you fix it, or comment below the correction I will gladly help.
N(2n+6)-(n²-1)= 2n²+6n-n²+1=n²+6n+1
Answer:
y = 5.18
Step-by-step explanation:
replace x in the equation with 3.5
y = -0.72x + 7.7
y = -0.72(3.5) + 7.7
y = -2.52 + 7.7
y = 5.18
