Answer: 
Step-by-step explanation:
You know that 1 sandwich costs $4.60 and the school bought 47 sandwiches.
Therefore, in order to calculate the total cost of 47 sandwiches, you need to multiply this number of sandwiches bought by the schoole, by the cost of 1 sandwich. Then:

You know that 1 bag of chip costs $1.25 and the school bought 39 bags of chips.
So, in order to calculate the total cost of 39 bags of chips, you must multiply the total number of them bought by the school, by the cost of 1 bag of chips.
Then:
Therefore, the total amount school spent was:

Answer:
Yes
Step-by-step explanation:
It's just like adding fractions where you have to find the common denominator so the fractions can be subtracted.
<u>Example</u>
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Step-by-step explanation:
-8 - -4= -8+4=-4
16- -4=20
8- -4=12
-9--4=-5
Answer:
2nd option is correct
Step-by-step explanation:
x +2y=14
2y = -x + 14
y= -x/2 +7
The answer is (32/100)-(8/25 )