Last month the cost of using the air pump at a garage was 20p. This month the cost of using the air pump is 50p Tom says,
50/20= 2.5 so the cost of using the air pump has increased by 250%
Is Tom correct? Explain your answer

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?

What’s the range cuz i can’t find it?