Answer:
A.The marginal frequency for the survey is 160
Step-by-step explanation:
Answer:
5(2x-8)+15=-15
10x-40+15=-15
10x-25=-15
+25 +25 (add 25 to both sides)
____________
10x=10
divide by 10 on both sides
x=1
There are 365 days in a year.
52 weeks.
Every week has 2 days of weekend.
That's 52x5= 260.