1a. nan and soto are designing a coffee table using four inch tiles nan uses 30 tiles and soto uses half as many how many total tiles did they use 1b. if the area of the table is 36 inches by 24 inches will they have enough towels to cover the table if not how many more will they need 2 different questions but they are related

1A= 45 tiles because if nan used 30 and soto used half as many you would do 30 divides by 2 to get half of it which would be 15 then add 30=15 to get 45 tiles

2B= what we know
they used 45 tiles each tile is 4 inches which they have covered 180 square inches
what the table is 36*24= 864 squared inches so they will need 171 more tiles because what you do is subtract what they already covered by what the area of the table is actually so do 864-180 which equals 684 then divide it by 4 because that's how long the tiles are to get 171

The expressions would be 0.25a