8 ( 4 - x ) = 7x + 2
32 - 8x = 7x + 2
-7x -7x
--------------------------
32 - 15x = 2
-32 -32
----------------------------
-15x = -30
/-15 /-15
x = 2.
10. A 11. D 12. A (wasn’t too sure about question 12)
If one coupons costs you 3 salads, 10 salads costs you 10 × 3 = 30 salads.
To get $10 in coupons, the least amount of salads you would need to buy is 30.
The domain is
, where n is an integer.
- This is because cot x = 1/tan(x), and if tan x = 0, then the fraction is undefined.
The range is <u>all real numbers</u>.