Answer:
The first one $1.42
Step-by-step explanation:
1.42x5=7.1 (cost of all envelopes)
12-7.1=4.9
4.9/14=0.35 (one postcard)
10 postcards= 3.5
1.42x15=21.3 (cost of all envelopes)
3.5+21.3=$24.80
Answer:
31
Step-by-step explanation:
Increases by 7 each time
Answer:1/3 i dont know if this is right i just kindly copied the guy on top
Step-by-step explanation:
80, divide 200 by 2.5 and you get 80. Check by multiplying 2.5 and 80, which equals 200
