Answer:
<h2><u><em>
88</em></u></h2>
Step-by-step explanation:
Let 
be the number we're looking for.
So, 90% of is equal to 79.2.
This can be written as: 
.
Divide both sides by 
and you have your answer of 
.
<span> y-4=-8(x-1) is linear
===================
</span><span>y=x4 is non linear, it is a parabola or a curved line
===================
</span><span>y-x2=4.5 is non linear as it is curved
===================
</span><span>3x + 5y = 15 is linear</span>
7 because a(one side)= 1/sqrt2 * hypotenuse (7*sqrt2) THis equals 7
I) f(2)=1.5
ii) f(x)=0 ⇒ x=1.2
iii) k=-1
iv) x=1 ⇒ f(x)=1
