52 lbs is equal to how many kg

Can you me find the missing length. i attached an image.

Afitness center has 2 membership plans one has a low dollar sign up fee of 15 dollars and costs 38 dollars per month to join. a second plan has a higher sign up fee of 78 dollars but a lower monthly fee of 31 dollars for what number of days of the month is the coat the same

A. 15 degrees b. 45 degrees c. 30 degrees d. 60 degrees