What’s the lateral surface area of the triangular prism

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?