Part 1 :
if the number of hours (h) is greater than 7.
Equation for the amount(A) in dollar is
Amount (A) = 210 + (h-7)x20
Part 2 :
if she earns 410,
with the same equation
410 = 210 + (h-7)x 20
200 =(h-7)x 20
10 = h-7
17 = h
therefore, number of hours tutored is 17.
Angle 3, 6, and 8 have the same measure as angle 1
You add like terms together
1x+4x+6x are like terms
=11x
Add all the item together:
16 + 28 + 12 + 4
=60 total items