i think its zane casue he is going faster
Answer:
a. 19x-13 b. 
Step-by-step explanation:
a. 3(-3+5x)-1(4-4x) = -9+15x-4+4x = 15x+4x-9-4 = 19x-13.
b. 
= 
Answer:
-7
Step-by-step explanation:
Answer:
-1.4152338
Step-by-step explanation:
Formula
axr raise power n-1
Common ratio is T2/T1
-28/-12 is 2.3
-28(2.3) raise power 60