Find the sum.
(x^4 + 3x^3 – x^2 +6) + (2x^4 – 3x + 9) =

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

Hannah reads at a constant rate of 33 pages every 88 minutes. write an equation that shows the relationship between pp, the number of pages she reads, and mm, the number of minutes she spends reading.