1) v - 7 = 9

2 )
- 44 = - 4 a

3)
84 = - 7 z

4)
y/6 = - 8

5)
- 11 = c/7

6)
6 = b +2

7)
- 4 = 2 + x

8)
- 2 h = - 12

9)
3 d = 39

10)
5 = - 2 + f

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years