<span>y = 2x + 20. The answer is A. Explanation: Vlad spends a known amount of time on his history homework (20). On top of it, he also spends an unknown amount of time on solving a number of math problems (x). Each problem takes two minutes to solve, so the amount of time that he spends solving math problems is 2*x or 2x. In total (y), Vlad spends 20 + 2x amount of time on his homework. So y = 2x + 20, where y is clearly greater or equal to 20 and x is greater or equal to 0.</span>
It's 40,000 because you have to check the Number on your right if it's five or more are you rounded it if it's four or less it stays the same
Answer:
1-a
2-h
3-g
4-d
5-c
6-j
7-f
8-k
9-b
10-i
numbers are column A and alphabets are column B!
Note that there are some useless information here. But all you need to know is that the area of a trapezium is the average of the 2 parallel bases multiplied by the height.
Area = (32 + 24) / 2 * 9 = 252
Since 5 cans of stain can only cover an area of 250, you will need 6 cans of stain.