Use a calculator.
cause a calculator would prove that
It's D , the digit after the number ur rounding
X+y=48
2x+y=86
Because the first one is the amount and the second one is the cost
Answer:
t = 270.36 days
Step-by-step explanation:
hope this helps
y=4x+40
x represents the number of minutes
y is the total
40 because he already graded 40 papers, and 4x because that's how many phred grades times the number of minutes