Answer: 10. Answer is -3
Step-by-step explanation:
We'll do the first one. I can't read the variable, but it looks like a

so that's what I'll use, but it doesn't matter.
First, get the variable by itself:

You get that before you multiply each side by two.
Now, you color the line so that all values that are less than 6 are shaded, so you put an open circle at 6 since it's not included and then you shade everything to the left.
Answer:
2.45
Step-by-step explanation:
B+16.12=18.57. Take the sum and the given value and subtract the given value from the sum. You can do this on all problems like this.
Answer:
100.53
Step-by-step explanation:
Following the formula, V=πr2h 3, you would get 100.53 with 6 as the height and 4 as the radius.
11+i
that’s the answer hope it helps:)