The perimeter is just all the lines around the outside of the shape so basically take all the numbers and add them together to get the answer
Answer:

Step-by-step explanation:

DE :
If y is a solution of given DE then it satisfied the DE.
Differentiate w.r.t t

Using the formula

LHS:
RHS

By using the formula

LHS=RHs
Hence, y is a solution of given DE

3 x 7 because three, seven times is 21
Answer:
A) it wouldn't fit
Step-by-step explanation: