Hannah is tiling a section of her bathroom wall with tiles that are 1/2 foot by 1/2 foot the section of the wall is 2 1/2 feet tall and 4 1/2 feet wide let each square of the grid below represent 1/2 foot by 1/2 foot draw a rectangle on the grid to represent the section of the wall what is the area of the section of the wall?

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex