Answer:
D
Step-by-step explanation:
When you put something in parenthesis by a number, your multiplying each individual number by the number outside of parenthesis. Therefore, 5(2) = 10 and 5(7) = 35 and that equals 45, and 5(2+7) you distribute the 5 to both numbers and get 10+35 which equals 45 aswell.
Answer:
Hamburger buns: 7
Hot dog buns- 4
what does it mean by system?
The sum of a number.....means addition
ur expression would be : x + 21
Answer:
35 - m is the expression used to determine the number of gallons left in the tank after m minutes.
Step-by-step explanation:
Given:
- Tank with 35 gallons of water is leaking at a rate of gallon per minute
Calculations:
- Let "m" represent the number of minutes spent
- Number of gallons left in the tank = initial amount of water present – leaked amount of water
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- The required expression is 35 – m