A new automobile is purchased for $20000. If v=20000(0.8)^x, gives the car’s value after x years, about how long will it take to be worth $8,200?

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.