Through (-2,-3) slope= 1/3

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy. how much will she pay after the discount

Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot

Acollection of nickels and quarters is worth $2.85. there are 3 more nickels than quarters. how many nickels and quarters are there?