To find the area of a trapezoid use the expression 1/2h (b1 + b2), where h represents the height b1 represents the length of the top base and b2 represents the length of the bottom base. what is the area of the trapezoidal table?

length 4ft and 3ft
height 2 ft in the center

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655