Abuilding has 4 offices. there are 4 people in each of the offices. each person has 4 chairs.

how many chairs are in the building?

Your answer would be 64 chairs. Multiply 4 by 4 and then multiply again. Hope this helps!

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post