Answer:
8xy
Step-by-step explanation:

The correct equation is 8.7 + b = 54.6
because it is given that measure of side a is 8.7cm, in all other equations the values of a is different.
from the first equation we can find the value of b, that is
b = 54.6 - 8.7 = 45.9
so, value of b is 45.9cm
Step-by-step explanation:

now use point slope formula

Answer:
The tip is $11.39
Step-by-step explanation:
Brandy has a strike rate of 6 out of 10 frames. So the probability that Brandy will make a strike is 6/10 = 0.6. So, if Brandy has one roll in the first frame of the next game , the probability he will have a strike is 0.6 or 60%.
It 5/10 probability and 5/10 simplified is 1/2