Answer:
13r-13n
Step-by-step explanation:
just add 9r+6r get 15r then subtract it by 2r then you get 13r and you can't subtract unlike terms
Solutions
1) <span>Subtract </span><span>7/8</span><span> </span><span>from both sides
</span><span><span>x=4−<span>7/8
</span></span></span>2) <span>Simplify</span><span> </span><span>4−7/8</span><span> </span><span>to</span><span> </span><span>25/8
</span><span><span>x=<span>25/8</span></span></span>
Answer:

Step-by-step explanation:
we are given
y varies directly as x
so, we can write equation as

where
k is constant of proportionality
We have
at x=-1 , y=6
so, we can use it to find k

so, we get

now, we can plug it back

now, we can plug x=5
and we get


Answer: the scale factor is 2.5
Step-by-step explanation: hope it helps :)