Hi there!

First we need to work out the parenthesis, which can for instance be done using rainbow technique.

Now subtract 3 from both sides.

And finally add 3x to both sides.

The 4th answer choice is correct.
It really depends on what month or year. but typically a month is 4-5 weeks so it's either 16 or 20 miles
X=-5 and y=1
you would replace the letter x or y with zero to find the intercept.
Answer:
(a) 9
Step-by-step explanation:

substitute r = 4, t = 2

simplify

cubic of 2 is 8

simplify

The answer would be 11x-12