Part a: ms. donaldson earns $18.80 per hour for the first 40 hours she works in a week. she earns 1 1/2 times that amount per hour beyond 40 hours in a week. last week ms. donaldson worked 45.5 hours. how much money did she earn?
$907.10.
part b: a health insurance payment of $34.55 was deducted from ms. donaldson's earnings for the week. after the insurance deduction, payroll taxes equal to 28% of the balance were deducted. what was the amount that ms. donaldson received?
i need the answer for part b! , you! : )

Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. here are data on the "penetrability" of the same type of soil at two levels of compression. penetrability is a measure of how much resistance plant roots will meet when they try to grow through the soil. compressed soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16 intermediate soil 3.17 3.37 3.1 3.40 3.38 3.14 3.18 3.26 2.96 3.02 3.54 3.36 3.18 3.12 3.86 2.92 3.46 3.44 3.62 4.26 use the data, omitting the high outlier, to give a 95% confidence interval for the decrease in penetrability of compressed soil relative to intermediate soil. compute degrees of freedom using the conservative method. interval: to