Find the sum of the given polynomials.
ax + by + c, 2ax - 3by + c, and by - c
a. 3ax - by + c
b. 3a + x - bc c. 3ax + by - cd
d. bx - 3bc + a

Find the area of a trapezoid with a height of 23, base 1 of 10 and base 2 of 18

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits