The picture is not clear enough
X will be ur domain...and it represents time in hrs.....therefore, it cannot be a negative number...so that eliminates B and C. I do not believe it has to be a whole number...so I am going with A
Answer:
6 phones and 18 accessories
Step-by-step explanation:
12P + 3.50A = 135
A = 12 + P
12P + 3.50(12 + P) = 135,
12P + 42 +3.50P = 135
15.50P = 93
P = 6 phones
A = 12 + 6 = 18 accessories
Volume of cone : V=1/3pie r^2h