Moises usa 1/3 del dia durmiendo, 1/6 comiendo y 2/5 estudiando ¿cuanto tiempo le queda libre?

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.