What is 8b plus 7b-4-6b?

Is 833 a cube number? Is the square root of 18 rational? What is 159870000 in scientific notation? Who wrote for every minute you are angry you loose sixty seconds of happiness? How many weeks are in 1443 days? What expression is equivalent to (sin x 1)(sin x-1)? 75 weeks equal how many years? How many faces does a tetrahexahedron have? What is usually measured in meter per second square? Which is longer a 12cm pecil or a 1dm pen? How much is 50 degree fh in celious? What shape has 3 faces 2 edges and 0 verticies? What is the number 100000000000000 in words? What number is bigger 500 or 50? What does the fraction two sixteenths round to? What is the equivalent expression for 8? How do you write 1 million 28 thousand in standard form? 16 is what percent of 40? What is 27.3 percent as a fraction what does it mean? How many microns is 1 ten thousandth of an inch?