Answer:
z = 2.6
Step-by-step explanation:
<u>Use the formula for z-score</u>

This tells us that this person's score of 210 places them 2.6 standard deviations above the mean
Answer:
Y=7.5x
Step-by-step explanation:
8-5=3 and 60-37.5 is 22.5 divide 22.5 by 3 and you get 7.5 which is the rate that he earns an hour
Answer:
you left something out but you need to put it in a better understanding
Step-by-step explanation:
15/124 is 1860 multiply
230/30 is 6900 multiply
1860 and 6900 is 8760 addition
230/124 is 28520 divided by 8760 is 3.2
tried :)
Answer:
B. Add/subtract the same quantity from both sides.
in this case, it would be adding <em>x</em><em> </em>to both sides to simplify the equation.