Answer:
3x²
Step-by-step explanation:
=
=

Answer:
29x-15
Step-by-step explanation:
fifteenth term=x-1+14(2x-1)
=x-1+28x-14
=29x-15
-.5 or negative 1/-2
same thing just in a dec and frac
If a line is parallel to another line,Then the gradients are the same.So m=4 .Using general formula for str8 line, y=mx+c

sub in coorfinates (1,13)

So C=9.