three sets of rice A, B,C are sold for $15,$35,$60 respectively per kilogram. if they are mixed in the ratio 1:3:2,calculate the cost per kilogram of the mixture​

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared