The price of oil recently went from $10.50 to $12.60 per case of 12 quarts. find the ratio of the increase in price to the original price. what's the ratio in fraction form

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?

Is the number 128.439 a rational number