From january to june a company spent 60.00 per month on office supplies. in july the price increased by 15% and remained the same for the rest of the year. how much did the company spend on supplies for the year?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?

Find two numbers if their sum is 91 and the ratio is 6: 7?