Answer:
30
Step-by-step explanation:
Problem = 3x + 21 for x=3
3(3) +21 --- subsitute the three for the x
9 + 21 ---- multiply the 3s together
30 ----- add
Option C .2
As 87/43=2.1
=2
180%
A full box shaded in plus 80% of another box is 180%.
I think the answer of this question is number b. quadratic
You can buy 90 tickets
