Answer:
20 times
Step-by-step explanation:
Here is a chart:
3,13,23,30,31,32,33,34,35,36,37,38,39,43,53,63,73,83,93.
It appears 20 times. Hope this helps!
it would have to be c....
Answer: x = -3
2y + x = -15
y = 2x
2y = 2(2x) = 4x
4x + x = -15
5x = -15
x = -3
408 cm^2
Adding together all the sides + bases, it would be
(15×6) + (8×15) + (10×15) + (6×8 /2) + (6×8 /2) = 408