Simplify: (-3x^3+2x^2+4x)-(8x^4-5x^3+6x^2-2x

If jaime wants to find 60% of 320, which table should he use?

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class