<span> if x = 2
9x + 13 = 9*2 + 13 = 18 + 13 = 31
</span><span>D) 31</span>
Answer:
2b + 3t = 60
Step-by-step explanation:
2b is the number of wheels on a bicycle
3t is the number of wheels on a tricycle
and 60 is the total number of wheels
Use the formula
S=wh+lw+ls+lp
And you should get your answer.
1.)label the shape with length width side and p then multiply the letters that are together in the formula.then add whatever you got when you multiples tougher and that's ur answer
Answer:
81
Step-by-step explanation:
Given the expression: 
To make it a perfect square, we follow the following steps.
Divide the coefficient of x by 2
- Coefficient of x=18, 18/2=9
Square It
Add it to the expression
This is written as a perfect square as: 
The constant term required therefore is 81.
The answer to your question is 20
