Answer:
First evening, 21 calls. Second evening, 26 calls. Third evening, 84 calls.
Steps:
T = 4F
S = F + 5
131 = F + S + T
Substitute in the S and T equations;
131 = F + F + 5 + 4F
126 = 6F
F = 21
Then substitute F into both T and S equations;
T = 4 * 21
T = 84
S = 21 + 5
S = 26
Answer:
2x - 6
Step-by-step explanation:
(x-3)2
2( x ) = 2x
2( - 3 ) = - 6
2x - 6
Answer:
Hello!!
When solving 
, the correct sequence of operations would be...
Multiply each side by −5, add 25 to each side
Step-by-step explanation:
When completing the order of operations use PEMDAS Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
Hope this helps!!
The answer is D. <span>No, it is not a valid inference because his classmates do not make up a random sample of the students in the school.</span>
