150*30% = $45
$150-$45 = $105
Marco still owes his brother $105
Answer:
x=5 y=1
Step-by-step explanation:
Answer: -100 + x = 40
Step-by-step explanation: We know she starts at -100 feet, she is increasing in elevation, so we want to add a positive x to her initial value of -100. If we keeping adding that x, it will soon result in a positive value of 40.
