Item 4 Solve the system by substitution. y=x−1 −2x−3y=−1

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

The mean average cost of standard room per night at a hostel is ? 20.60. therefore, how much does a standard room cost per night at night-time rest days?