Answer:
20
Step-by-step explanation:
Since this is not a right angle, we can use the formula 
a=7
b=10
y=35
So, when we plug these values in, we get:

rounded to the nearest hundredth, I believe it's 20.
Answer:
89.25
Step-by-step explanation:
1. multiply 3.5 by what is in parentheses
2. Subtract 89.25 by 57.75
Answer:
its b.
Step-by-step explanation:
Answer:
The range would decrease by 2
Step-by-step explanation:
The range is the difference between the highest number and the lowest number.
8 is the highest number and 1 is the lowest number here, so to find the range we would subtract 1 from 8. 8-1=7
But since 8 is being replaced by 6, we would subtract 1 from that instead.
6-1=5
The range decreased from 7 to 5, so it decreased by 2.
Hope that helps :)
2x-6 (2) is your equation. follow these steps, and you have to distribute 6 into 2 like this: 2x-12. you get negative 12 because -6 x 2 =-12. now you divide -12 by 2 which is -6. So -6=x