Answer:
I can do the top 2
1. a = -11
2. z = 9/2 (or nine over two in word form)
Step-by-step explanation:
84 cm^2
Area of triangle + area of rectangle
Area of triangle = 1/2*l*b
= 1/2*8*3= 12 cm^2
Area of rectangle = l*b
= 12*6 = 72 cm^2
Total area= 72+12
= 84 cm^2
107.82
-8, -3, -2.5, 0, 1/4, 6