Will give brainliest to whoever solves these

Answer:
hello
Step-by-step explanation:
hope you understand
∑ Hey, rayhanbaig51 ⊃
Answer:
[1] 3 x 7 = 21
[2] 4 x a = 4a
[3] m x m = mm
Step-by-step explanation:
Given:
Write the expression that represents the area of the rectangle shown.
Solve:
A= Lw
Which;
A = Area
L = Length
W = Width
Hence,
Area = Length x Width
Thus, the expressions are;
[1] 3 x 7
[2] 4 x a
[3] m x m
Solving:
[1] 3 x 7 = 21
[2] 4 x a = 4a
[3] m x m = mm
xcookiex12
8/24/2022