<h3>
Answer: 21x+14 (choice A)</h3>
Explanation:
Use the distribution rule to multiply the outer 7 by each term inside
- 7 times 3x = 21x
- 7 times 2 = 14
We go from 7(3x+2) to 21x+14
Answer:
z = 110
Step-by-step explanation:
z + 35 + 35 = 180
z+70=180
z = 110
Answer:
Y= 3
Step-by-step explanation:
RS=ST
9y+3=3y+5
Answer:
400
Step-by-step explanation:
5(1+3)^2
(5+15)^2
20^2
400