2^–1 × 2^2 × 2^–1 is equal to

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

What is the best reason for jacinta to have a savings account in addition to a checking account

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form