The sale is 25% off and the reguler price is 216.67 how much did she pay

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Nicole is making carrot bread she needs 5 cups of carrots for 2 cups of sugar.what is the ratio of cups of sugar to cups of carrots that nicole will need? write the ration in three different ways