Plzzzzz helpppp!!!!!!
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Answer:
x=11
Step-by-step explanation:
because a each angle of a square or rectangle is 90° which means you add 9 to 90 and then divided 99 by 9 which is 11
Answer:
x = 11
Step-by-step explanation:
9x - 9 = 90
+ 9 + 9
9x = 99
9x/9 99/9
x = 11