Answer:
$18
Step-by-step explanation:
15*.2=3
15+3=18
The haircut is $18 with tip included.
Answer:
1.5 is the answer
Step-by-step explanation:
The sample mean is equal to the population mean.

The standard deviation of X-bar (the standard error) is:
I think the answer to the question is 2,250
Answer:
1. Expression: y = 235x
Answer: 1,175
2. The cost of the shirts is 5 dollars. Alex has 15 dollars in his wallet. He wants to buy 3 shirts. Write an expression that represents this problem.
Step-by-step explanation:
5. 235 per second
5 x 235 = 1,175
Expression: y = 235x