Select each pair of expressions that are equivalent. 1. 3x + 14 – x + 112 and 4x + 134
2. 2 + 6x and 2(3x + 1)
3. 3(x + 1) – (1 – x) and 2x + 3
4. 3x and 4(x + 1) – x – 4
5. 5.5 + 2.2x + 3.8x – 4.1 and 1.4 + 6x

What value is equivalent to 5 + [5 × (4 + 2)]? a) 35 b) 45 c) 60 d) 110

Which question is not a good survey question? a.don't you agree that the financial crisis is essentially over? 63on average, how many hours do you sleep per day? c. what is your opinion of educational funding this year? d.are you happy with the availability of electronic products in your state?

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =