What is the sum
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Step-by-step explanation:

he total amount resulting from the addition of two or more numbers, amounts, or items

(2/5x+1/5x)+(5/8-1/4)

3/5x+(5/8-2/8)

3/5x+3/8

the answer is a

step-by-step explanation:

because if you put 1 in to the square root of x it equals 300.

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.