Number 3 would be C and number 4 would be D
8/3 (plz give me brainliest)
Answer:
a. 2
b. 3
c. 3x^2+9x+15
d. 257
Step-by-step explanation:

When a function is written like that the value in the parenthesis is what you use to replace the x inside the expression.
a. f(-1) means the value of function "f" when x = -1

b. "f" when x = -2 + "g" when x = -2

c. multiply for 3 each function

d. "g" when x = 4 then "f" when x = g(4)

Answer:
Yolanda ran 134 miles on Saturday and 212 miles on Sunday. She used fraction strips to model the total distance she ran.
Step-by-step explanation:
Answer:
9*(6+7)
Step-by-step explanation:
First, we have to find the Greatest Common Factor (GCF), to do this we have to see all the factors of 54 and 63 and find the greatest factor that they have in common.
Factors of 54
1,2,3,6,9,18,27,54
Factors of 63
1,3,7,9,21,63
The GCF is 9 because is the greatest factor that is common to both numbers.
Now we have to divide 54/9 and 63/9
54/9 = 6
63/9 = 7
So now we can write the product of the GCF and another sum:
9*(6+7)
<em>We can prove this by solving both expressions:</em>
<em>54+63 = 9*(6+7)</em>
<em>117 = 9*13</em>
<em>117 = 117 </em>
<em>The results are equal so we prove it is right.</em>