If it takes 3 people to make 21 t-shirt per day , how long will it take 12 people

84 shirts

Step-by-step explanation:

3 × x = 21

x = 21 ÷ 3 = 7

12 × 7 = 84

84

Step-by-step explanation:

Because 3 people are making 21 shirts

If there were 12 people then your timesing the answer by 4 so 21=3 people so whats 3 people x 4=12 so then times the shirts by 4

Whats 21 x 4=84 so there is your answer.

Hope it helps have a great day:)

b, i believe, but not sure.

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21

-7 + ? = 21

-7 + 28 = 21

hope it