Answer:

Step-by-step explanation:
Be VERY careful. When it write out the equation that way, it will give the speculation of this:

Now, in this case, since you were extra explanatory about this [what is written in parentheses], two factors I know of that multiply to 15 are these:
** 
I am joyous to assist you at any time. ☺️
Answer:
11)<em>(-1)</em>
<em>12)1.7</em>
Step-by-step explanation:
11)y+z/x
(-3)+(-2)/5
(-5)/5
<em> (-1)</em>
12)x-5z/y
5+5(-2)/(-3)
5+(-10)/(-3)
(-5)/(-3)
1.666
<em> 1.7</em>
<em></em>
<em>Hope this helps you</em>
<em>If you have any question just ask me</em>
Cos(35) = x/6
or 6 * cos(35) = x