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<h3>PLZZ PLZZ MARK ME BRAINLIEST!!</h3>
He has been adding pennies for 23 weeks. 161 / 7 = 23.
<span>log_9 x + log_9 (x + 12) = log_9 64?
answer is x=4</span>
since it is perpendicular line you have to change thing signs of the equation.
x y
(-1,4)
replace the (-1) with x and (4) with y
y=1/2x+b
4=1/2(-1)+b
4=-1/2+b
4+1/2=b
9/2=b
therefore, the perpendicular line is y=1/2x+9/2