When a disease is more or less constantly prevalent in a locality year after year in a moderate to serve from, it is known as
The correct answer is A
756 + 432 – 361 + ? = 990
25% of 1000 + 10% of 150 – 22 × ? = 45
[123 ÷ 8 ÷ 9] × 144 = ? + 12 × 5
I. 8x² - 74x + 165 = 0
II. 15y² - 38y + 24 = 0
26% of 950 + 50/3% of 7962 = ?
Solve.
15.73 +13.25 +16.73 – 28.71 = 5 ×?
5(? + 2) = 3125
18 × 15 + 86 – 58 =? + 38
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