Answer: 63 questions
Step-by-step explanation: to find 75% of 84, multiply 84 by .75
Answer:
a
Step-by-step explanation:
81 = 9^2
I hope it's help you...
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I think Substitution
Because x is already solved for in the second equation.
29
c² = 2² + 5²
c² = 4 + 25
c² = 29
c = sqrt(29)