Answer:
-1
Step-by-step explanation:
The shape of the graph is curved upwards
That mean the value of a is negative. Thus -1 is the suitable answer
Cir = d
C = 15
the second one
D. 30 cm
10 + 7 + 7 + 6 = 30
24 DVDs
45% of 160 = 72
40% of 160 = 64
72+64=136
160-136=24
