What are the answer? (Zoom in to see clearly)

15.) -21f - 16

16.) 5s + 2t

Step-by-step explanation:

15.)

-12f - 16 - 9f (Distribute 4 through the parentheses)

-21f - 16 (Collect like-terms)

16.)

4s + 2t + s + s - s (Since two opposites add up to zero, remove them from the expression)

4s + 2t + s (Collect like terms)

if x decreases by 4 then y increases by 10

step-by-step explanation:

srry idk

step-by-step explanation: