Hunter Schatzel has a charge account which uses the unpaid balance method of computing finance charges. The periodic rate is 1.5 percent. Hunter’s previous balance is 98.56, and he had payments and credits of 47.97. If he has new purchases if 136.85, what is his new balance?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.