Find the area of the composite figure. First, find the area of the triangle.
12 in
Area = [] inz
13 in
Total Area of
Composte Figure=[]in2
24 in.

please help

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

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

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?