Answer:
252
Step-by-step explanation:
If there are 3* as many photos as videos then, multiply 3 * 84, to get 252
Answer:

Step-by-step explanation: I hope it helps :)

Answer:
y = -2x + 7 and y = x - 2
Step-by-step explanation:
2x + y = 7
y = -2x +7
x - y = 2
-y = -x +2
y = x - 2
Answer:
question
Step-by-step explanation: