Edson exercises in sets that are each t minutes long. he does 6 sets of push-ups, 3 sets of pull-ups, and 4 sets of sit-ups. use an expression to represent the time it takes edson to exercise as the sum of three different terms. simplify the expression. enter your answer in the box. the time it takes edison to exercise is equal to t.

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

=force × distance a. work b. velocity c. pressure d. momentum

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages