Miguel and Kala each opened a savings account today, Miguel opened his account with a starting amount of \( \$ 770 \), and he is going to take out \( \$ 30 \) per month. Kala opened her account with a starting amount of \( \$ 935 \), and she is going to take out \( \$ 45 \) per month. Let \( x \) be the number of months after today.

Juan used the expression \( 16-9-12+22 \) to find his profit for days 2 and 3 . He rewrote the expression as 16 \( +(-9)+(-12)+22 \). Juan can use the associative and commutative properties to rewrite the expression again. Explain why he had to use the additive inverse before he could use these properties.

A.

179. \( \lim _{x \rightarrow 1} \frac{\sqrt[3]{x}-\sqrt[4]{x}}{x-1} \)

332 In un campeggio estivo è ora di fare merenda e gli educatori hanno a disposizione 108 fette di formaggio, 162 fette di salume, 54 fette di pomodoro e 270 foglie di insalata. Qual è il numero massimo di panini im- bottiti uguali che possono preparare? Quante foglie di insalata ci sono in ogni panino? INVALSI In un quartiere di una città, il calendario della raccolta differenziata (carta, vetro e plastica) pre-

Solve for k, equation of variation and the indicated varable If \( y \) varies inversely as \( x \) and \( y=3 \) when \( x=4 \). Find \( y \) when \( x=6 \) If \( t \) varies inversely as \( s \) and \( r=100 \) when \( s=27 \) find the value of when \( s=45 \)