Need help with this one

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?