The answer would be $225 The question tells us that two 4hr shifts earns her $120. So, one 4hr shift would earn her $60 and from that we can find that an individual hour earns her $15. Then we would multiply the $ per hour ($60) by the amount of hours asked for (15hrs) and we would get $225.
Cole's mistake was that he rounded 555 to the nearest hundred instead of the nearest ten. He should've rounded it to 560 because the tens place is the second number, not the first one.
