Brine is a solution of salt and water. if a tub contains 50 gallons of a 5% solution of brine, how much water must evaporate to change it to an 8% solution? 81.25 gallons 62.50 gallons 18.75 gallons

What is the y intercept of f(x)=(1/2)^x?

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

If you have the following equation, 2/3x+5/6-x=2-3/4x what would you multiply each term by to get rid of all the fractions