Answer:
b
Step-by-step explanation:
Time taken for the total workout = 15 + 30 + 45 = 90 minutes
Time taken for lifting weight : total time = 30 : 90
= 1 : 3
Move the decimal point 2 places to the left answer: 0.0951
4.5 is equal to k. This is the answer .
Times 4 because, 5 times 4 is 20, 20 times 4 is 80 and so on.