(22) Ms. Singh makes snacks for a party. She has some crackers and
\( 6 \) paper cups. She puts \( 25 \) crackers into each cup. There are no crackers left over. Write an equation that shows this prob- lem. Use the variable \( x \) for the total number of crackers.
\(x= 6*25\)
How long will it take \(\$ 1500\) to double itself at \(6 \%\) sim- ple interest?
A pharmacist makes eye drops with saline solution. A \(10 \%\) saline solution mixed with an \(80 \%\) saline solution makes \(7\) cups of a \(60 \%\) saline solution. How many cups of the \(80 \%\) solution should be used?
