Answer:
I assume this is area.
5×7=35
12×9= 108
add 35 and 108 = 143
if this isn't area send a comment and I'll give the answer if it's something different
Answer:
a.4
Step-by-step explanation:
Because 10 is greater than 6 so, it turns into a positive instead of a negative. and of course 10 + 6 = 4
Answer:

Step-by-step explanation:
Given: 
Formula: 








Answer:
Pretty much f(n)=-3+5n-1
Step-by-step explanation:
for the 50th term 242