The answer is 21 because you do PEMDAS first. (8-8) is 0. And 0+21 is 21
Simliar-AA is your answer
Answer:
1
Step-by-step explanation:
Answer:

Step-by-step explanation:
ST = w + 6,
PR = w
From the diagram given, we can deduce that PR is the midsegment of ∆QST. Therefore, according to the midsegment theorem:
PR = ½ of ST
Plug in the values into the equation and solve for w.

(distributive property of equality)
(subtraction property of equality)
(multiplication property of equality)

(subtraction property of equality)

Divide both sides by -1

