Convert square<span> units ... Pi is approximately , or </span>3.14<span> rounded to two decimal places. ... Note: In </span>finding<span>the circumference of a circle, you can </span>use<span> whichever approximation for pi .... Converting Between </span>Feet<span>and Yards in </span>Finding Area<span> .... </span>38<span>. Cost. An A-frame cabin has a triangular front with a base of 30 ft and a height of. 20 ft. Hope this helped please mark me as brianliest thx</span>
Answer:
10.5
Step-by-step explanation:
X = the number of months the tire was used
y = the thickness of the tire tread
y = -(3/7)x + 20
Substitute x for 20 (the number of months the tire was used) and solve for y.
The next question: Substitute x for 49 (the number of months the tire was used) and solve for y.

Hope that helps and hope you get better!
You need to divide 9 to both sides in order for y to come alone. So then you would have to divide 27 by 9 and y = 3. Hope this helps!