Which is the graph of f(x) = 4 (1/2)^x ?

Which number produces a rationale number when multiplied by 1/5

Are the corresponding angles congruent? explain why or why not.

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.