If ab=c-d which of the following is an expression for d in terms of a, b, and c? a. d=ab-c b. d=-ab+c c. d=c+ab d. d=-ab-c

The expression for d is (b) d = -ab + c

The equation is given as:

ab = c - d

Add the variable d to both sides of the equations

d + ab = c - d + d

Evaluate the sums

d + ab = c

Subtract ab from both sides of the equations

d= c - ab

Rewrite as:

d = -ab + c

Hence, the expression for d is (b) d = -ab + c

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i belive those are the ones that are under 90 degreese.