Which expression is the same as - 4 - 9 A. -4 - (-9)
B. 4 + 9
C.-4 + (-9)
D. 4 - 9
E. 4 + (-9)

C, becasuse adding a negative is still subtracting

Step-by-step explanation:

It can't be A, because subtracting a negative turns into an addition problem,

it can't be B, because they are both positive,

It can't be D, because it's just a subtraction problem,

and it can't be E, because the 4 is not negative.

I hope this helped! have a delicious day!:P

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94