A. DIRECTIONS: find the missing term in each proportion. write the letter of the correct answer on the space provided before each number. COLUMN A
1. 1:2=__8
2. 6:3=4:___
3.___:5=2:10
4. 12:__=3:4
5. 6:3=___:5

COLUMN B
A. 1
B. 4
C. 10
D. 16
E. 2​

Acertain drug is made from only two ingredients: compound a and compound b. there are 3 millimeters of compound a used for every 4 millimeters of compound b. if a chemist wants to make 693 milliliters of the drug, how many milliliters of compound a are needed?