To rewrite, all we have to do is apply the associative property of addition. It allows us to write the expression as <br /><br />y + (1 + 4) <br /><br />we could even take it one step further and combining our terms for<br /><br />y + 5
9.7 is the sum of both paints used to pain her bedroom walls. If we know that 3.5 of the 9.7 was blue, we can safely assume that the remainder of the paint was white, thus 9.7 - 3.5 = 6.2