Well 21 times 2 is 42 and 1/3 of 21 is 7 so 42+7 is 49. hope this is right
Answer:
The answer is 17.2 hours
Step-by-step explanation: Because first you add all hours together (which is 86/15) then multiple it by 3 (week) which is 86/5 = 17.2 hours
Cot = Cos/Sin
Cos = 12/13
Sin = 5/13
Therefore, 12/3 divided by 5/13 equals 12/5
Answer is 1.
The mathematical answer would happen to be... 0
