. Neal makes a cleaning solution by mixing water and vinegar. He uses 7 cups of water for every 3 cups of vinegar. Write and use an equation to find how many more cups of vinegar he needs when he uses 7.5 cups of water than when he uses 4.5 cups of water. Define the variables. (write an equation in the form y=kx, define what x & y represent)

9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10

Can (3,5 and square root 34) be sides on a right triangle?

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?