How many gallons of gasoline that's 6 percent ethanol must be added to 2,000 gallons of gasoline with no ethanol to get a mixture that's 4 percent ethanol?

What is 6.25 as a fraction and percent

The sum of five and a number n is at least 12

The camera shop wants to use the measure of central tendency that expresses how successful they are in selling cameras. Which measure of central tendency should they choose?

What is closer to 9999/10000000, 0 1/2 or 1

Choose an appropriate metric unit for the length of a pencil

Court time is selling tennis rackets for $64.99. The cost to court time is $37.48 per racket. Overhead is estimated to be 20 percent of the selling price. What is the net profit rate?

25 is on sale for 30% off. What is the sale price

5x+3y=4 Y=-3x how do i do this?

Express 41-4 as a mixed number

A certain disease has an incidence rate of 0.2%. If the false negative rate is 8% and the false positive rate is 4%, compute the probability that a person who tests positive actually has the disease.