I believe the answer is D
I would have used graph b. Because it shows the decrease more than graph a.
<span>Give by deep IM inj into upper outer quadrant of buttock; rotate inj sites. Upper respiratory Group A strep: 1.2 million units once. Syphilis (primary, secondary, latent): 2.4 million units once; (tertiary and neurosyphilis): 2.4 million units every 7 days for 3 doses. Rheumatic heart disease, acute glomerulonephritis: 1.2 million units once per month, or 600,000 units every 2 weeks.</span>
Tree...........................dock
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boat
use Pythagorean Theorem to satisfy...a^2 + b^2 = c^2
200^2 + b^2 = 300^2
b^2 = 300^2 - 200^2
b^2 = 50000 (get square root of each)
b = 223.606 (rounded to the nearest tenth.... = 223.6