Is the confidence interval equivalent to the expression is it equivalent to the expression?

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period. value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

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