Melody spent $163 on groceries one week and $156 on groceries the next week. estimate how much more she spent on groceries the first week by rounding to the nearest ten and then subtracting.

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3