Fundraiser The history club is raising money so that they can go on a trip to the Smithsonian Institution in Washington, D. C. They need to raise $1400. They plan on
selling pizzas for $6 each and sandwiches for $4.50 each. An equation that models
this situation is given by 6x + 4.5y = 1400 where x is the number of pizzas sold and
y is the number of sandwiches sold.
a. One of the club members wants to figure out how many sandwiches need to be
sold for different numbers of pizzas. Which variable should the club member
solve for? Solve for the variable.