Please help!! (Will mark as Brainliest)

How many ml of 10 percent acid should be added to pure acid to make 60 Mk of 30 percent acid?

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

Factor the polynomial by its greatest common monomial factor.