+2448 
I accidentally crossed out 29 lol whoops I need help with 27,29,and 31
28 is 21 degrees (easiest question yet ha) Range=80 (highest number)-59 (lowest)=21
30 is x=35 because 80+25+40=145
180-145=35
Just to show you I know the easy ones xD
+129852 27....We could find the inverse of the function...but....the easier method is to just solve this :
-10 = (x - 1) / 4 multiply both sides by 4
-40 = x - 1 add 1 to both sides
-39 = x = f-1 (-10)
29 We have this form
y = a (x - h)^2 + k where h, k are the coordinates of the vertex
So we have
y = a (x - -3 )^2 + 5
y = a (x + 3)^2 + 5
Since the point (2, -10) is on the graph, we can solve for "a"
-10 = a ( 2 + 3)^2 + 5 subtract 5 from both sides
-15 = a (5)^2
-15 = 25a divide both sides by 25
-15/25 =a
-3/5 = a
So...the function is y = (-3/5)(x + 3)^2 + 5
The y intercept occurs where x = 0 ....so....
y = (-3/5)(0 + 3^^2 + 5
y = (-3/5)(3)^2 + 5
y = (-3/5)*9 + 5
y = -27/5 + 25/5
y = - 2/5
Here's a grpah to confirm this : https://www.desmos.com/calculator/ecloqpgull
Lst one.... we can always divide a polygon of n sides into (n -2) triangles.....since each triangle has 180 degrees of measure, then the sum of the interior angles is just 180 (n - 2)
So....we can solve this
900 = 180 (n - 2) divide both sides by 180
5 = n - 2 add 2 to both sides
7 = n (7 sides)
