This is due in 20 minutes please show work

Andy is making a design using ice cream sticks that are 4 and 1/2 in long he wants this long side of his designed to be no longer than 24 inches what is the greatest number of sticks that any can use on his long side of his design

What is the common difference in the following arithmetic sequence 7,3,-1,-5

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain