What is the value of x? make sure to show all of your work! hint: what does each angle measure in an equilateral triangle? you don't need to use the equation with y at all.

So since it’s an equilateral triangle all the angles equal 60 degrees.

7x-3=60
+3 +3
7x=63 /7
X=9

Hi! mark me brainliest if i : )y = 0.213x – 352.0    represents this linear model shown in the data table.plug in the values of x into the equation for a double check.let's try 1980.y = 0.213(1980) – 352.0y = 69.74which is closest to the 70.1 whereas other options do not satisfy the condition.