At a sale on candles, Lexi bought two large candles and five small candles and paid $30. Carl bought one large candle and three small candles and paid $16.75. Find the cost of each.

A garden supply store sells two types of lawn mowers. The smaller mower costs $249.99 and the larger mower cost $329.99. If 30 total mowers were sold and the total sales for a given year was $8379.70, find how many of each type were sold.

A summer soccer camp ordered a total of 84 soccer balls and t-shirts for the season. Soccer balls cost $25 each and t-shirts cost $9.50 each. If they paid $1,046 total for the purchase, how many of each item was ordered?

Jace has $2.15 in nickels and dimes. If he has 7 more nickels than dimes, how many of each kind of coin does he have?