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
It's 6 because you have to divide 
=
. You cross multiply then you divide by 100 then you get your answer.
Answer:
2.67
Step-by-step explanation:
sorry if this is wrong i did this in my head :(
The value of x is 12 or 32
