Adesk and a chair cost a total of $76. the desk costs 3 times more than the chair. how much does the cost? how much more does the desk cost than the chair?

x=chair

3x=desk

3x+x=76

4x=76

x=19 dollars is chair

3x= 57 dollars is desk

Now subtract to get difference which is 38 dollars.

a negative exponent is translated as follows:

so, we have

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°