Answer:
<h2>7.5$</h2>
Step-by-step explanation:

Let the three digit dividend be abc ,
then abc = 40*Q+4
So, abc is "40 times Q (the quotient, a number) plus 4"
we try a few values of Q for which 40Q+4 is a 3 digit number:
for Q=2
40*2+4=80+4=84
for Q=3
40*3+4=120+4=124
Answer: 124
15 because 228-3 is 225 and the square root of 225 is 15
Answer: I can't answer all four questions.
Step-by-step explanation: I'm sorry