**Answer:**

B. 9

**Step-by-step explanation:**

90-9 =81

Square root of 81 is 9

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# 7) If a number is added to its square, the sum, is 90. What is the number?, A.8, B.9, C.10, D.11

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By students. For students.

**Answer:**

B. 9

**Step-by-step explanation:**

90-9 =81

Square root of 81 is 9