Answer:
4 weeks
Step-by-step explanation:
15 + 2x = 23
2x = 8
x = 4
If you're looking for c, then the answer is 6 in. I found this answer by using a2+b2=c2 So 4 squared + 5 squared = 41. So then i found the square root of 41 which is 6.40, which rounds to 6.
7b is just 7 x b and if b is 6 its just 7 x 6
which the answer is 42
The answer is actually 164.1 because I learned how to multiply this. :)