Afarmer has 112 pecan tree and 97 walnij tree. how many more pecan teresa does the farmer have than walnij tree? desrcibe what you would do i would regroup the tens i would add 12 + 97 i would subtract 7 ones from 12 ones which answer is correct?

Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?

Given right triangle abc, what is the value of tan(a)?

Situation: . find the substance's half-life, in days. round your answer to the nearest tenth. a 11 gram sample of a substance that's used to treat thyroid disorders has a k. value of 0.1247. enter the correct answer n - noekt done no - initial mass (at time t = 0) n - mass at timet k a positive constant that depends on the substance itself and on the units used to measure time t= time, in days