Answer:
14
Step-by-step explanation:
28m + 21 = 413
28m = 413 - 21
= 392
m = 392/28
= 14
Therefore m is 14 :)
Answer:
19320
Step-by-step explanation:
brainliest please
36
Step-by-step explanation:
multiply 3×1 for the small triangle, 7×3 for the rectangle, and 4×3 for the bigger triangle