Mariah builds a tablet using square tiles. there are 12 rows of tiles and 30 tiles in each row. how many tiles does Mariah use.
To find the total number of tiles Mariah uses, you need to multiply the number of rows by the number of tiles in each row.
In this case, Mariah has 12 rows and 30 tiles in each row. So you can find the total number of tiles using the formula:
Total number of tiles = number of rows × number of tiles in each row
Plugging in the values:
Total number of tiles = 12 × 30
Now let's calculate the answer:
Total number of tiles = 360
Therefore, Mariah uses 360 tiles to build the tablet.