Answer:
a
Step-by-step explanation:
$9.00 per hour. take 45 and divide by 5 you get 9.
Start with

Expand both parentheses by multiplying both terms by the number outside:

Sum like terms:

Simplify the "+3" on both sides:

Subtract 2x from both sides:

Divide both sides by 2:

Ethan can conclude that the new medication is effective in reducing sneezing, because the group that received the new medication showed lower signs of sneezing, which was the purpose of the medication.